Hyun, E. (1998). Making Sense of Developmentally and Culturally Appropriate Practice (DCAP) in Early Childhood Education. New York: Peter Lang.
Isaacs, S. (1932) The Social Development of Young Children: A Study of Beginnings. London: Routledge and Kegan Paul.
Jarvis, P. (2006) Rough and tumble play: lessons in life. Evolutionary Psychology, 4, pp. 330–346.
Jennings, S. (1999) An Introduction to Developmental Play Therapy. London: Jessica Kingsley.
Kalliala, M. (2006) Play Culture in a Changing World. Maidenhead: Open University Press.
Keating, I., Fabian, H., Jordan, P., Mavers, D. and Roberts, J. (2000) 'Well, I've not done any work today. I don't know why I came to school': perceptions of play in the reception class. Educational Studies, 26(4), pp. 437–454.
Knight, S. (2009) Forest Schools and Outdoor Learning in the Early Years. London: Sage.
Krasnor, L. R. and Pepler, D. J. (1980) The study of children's play: some suggested future directions. In K. H. Rubin (ed.) New Directions for Child Development: Children's Play (Vol. 9). San Francisco: Jossey-Bass.
Laevers, F. (1994) The Leuvens Involvement Scale for Young Children (LIC-YC). Leuven, Belgium: Centre for Experiential Education.
Lieberman, J. N. (1977) Playfulness: Its Relationship to Imagination and Creativity. London: Academic Press.
Lindahl, L. B. and Heimann, M. (1997) Social proximity in early mother infant interactions: implications for gender differences? Early Development and Parenting, 6(2), pp. 83–88.
Lindon, J. (2001) Understanding Children's Play. Cheltenham: Nelson Thornes.
Lindsey, E. W., Cremeens P. R. and Caldera, Y. M. (2010) Gender differences in mother – toddler and father – toddler verbal initiations and responses during caregiving and play context. Sex Roles, 65(5–6), pp. 399–411.
McInnes, K., Howard, J., Miles, G. and Crowley, K. (2009) Behavioural differences exhibited by children when practising a task under formal and playful conditions. Educational and Child Psychology, 26(2), pp. 31–39.
McMahon, L. (2009) The Handbook of Play Therapy and Therapeutic Play (2nd Edition). Sussex: Routledge.
Marschark, M. (1993). Psychological Development of Deaf Children. New York: Oxford University Press.
Maybin, J. and Woodhead, M. (2003) Childhoods in Context. Milton Keynes: Open University Press.
Moyles, J. (1989) Just Playing?: Role and Status of Play in Early Childhood Education. Buckingham: Open University Press.
National Children's Bureau (NCB) (1998) The Charter for Children's Play. London: Children's Play Council.
Nicholson, S. (1971) The theory of loose parts. Landscape Architecture Quarterly, 62(1), pp. 30–34.
O'Reilly, A. W. and Bornstein, M. H. (1993) Caregiver – child interaction in play. In M. H. Bornstein and A. W. O'Reilly (eds) The Role of Play in the Development of Thought. San Francisco: Jossey-Bass.
Parker, C. J. (2007) Children's Perceptions of a Playful Environment: Contextual, Social and Environmental Differences. Unpublished thesis, University of Glamorgan.
Parten, M. B. (1932) Social participation among preschool children. Journal of Abnormal and Social Psychology, 27, pp. 243–269.
Patrick, G. T. (1916) The Psychology of Relaxation. Boston, MA: Houghton-Mifflin.
Pellegrini, A. (1991) Applied Child Study: A Developmental Approach. New Jersey: Lawrence Erlbaum.
Piaget, J. (1951) Play, Dreams and Imitation in Childhood. London: Routledge and Kegan Paul.
Ring, K. (2010) Supporting a playful approach to drawing. In P. Broadhead, J. Howard and E. Wood (eds) Play and Learning in the Early Years. London: Sage Publications.
Robson, S. (1993) 'Best of all I like choosing time': talking with children about play and work. Early Child Development and Care, 92, pp. 37–51.
Rogoff, B. (2003) The Cultural Nature of Human Development. New York: Oxford University Press.
Roopnarine, J. L., Lasker, J., Sacks, M. and Stores, M. (1998) The cultural contents of children's play. In O. N. Saracho and B. Spodek (eds) Multiple
Perspectives on Play in Early Childhood Education. New York: State University of New York Press.
Saracho, O. N. (1990) Cognitive Style and Early Education. New York: Gordon & Breach: Science Publishers.
Servin A, Bohlin, G. and Berlin, L. (1999) Sex differences in 1-, 3-, and 5-year-olds' toy-choice in a structured play-session. Scandinavian Journal of Psychology, 40, pp. 43–48.
Sheridan, M. D. (1972) The child's acquisition of codes for personal and interpersonal communication. In M. Rutter and J.A.M. Martin (eds) The Child with Delayed Speech. London: Spastics International.
Sheridan, M. D. (1976) Children's Developmental Progress from Birth to Five Years. Windsor: NFER.
Sheridan, M. (1977) Spontaneous Play in Early Childhood: From Birth to Six Years (1st Edition). Windsor: NFER.
Sobel, D. (2001) Children's Special Places: Exploring the Role of Forts, Dens and Bush Houses in Middle Childhood. Detroit, MI: Wayne State University Press.
Spencer, H. (1898) Principles of Psychology. New York: Appleton.