physical environment

Books and reports

Outdoor Learning in the early years: Management and innovation (3rd ed)
Bilton, H. Routledge, 2010. (publishers info)

Bringing the Steiner Waldorf approach to your early years practice (2nd ed)
Nicol, J. Green, S (Ed).  Routledge, 2010.(publisher's info)

Playing and learning outdoors: Making provision for high-quality experiences in the outdoor environment.
White, J. Routledge, 2008. (publishers info)

Theoretical perspectives

Children's right to play: An examination of the importance of play in the lives of children worldwide. Lester, S., & Russell. W. (2010). Working papers in: Early Childhood Development. Bernard van Leer Foundation.