Citazione Stile APA (7a Edizione)

Palmer, J. (1994). The Handbook of environmental education. Routledge.

Citazione stile Chigago Style (17a edizione)

Palmer, Joy. The Handbook of Environmental Education. London: Routledge, 1994.

Citatione MLA (9a ed.)

Palmer, Joy. The Handbook of Environmental Education. Routledge, 1994.