Citazione Stile APA (7a Edizione)

Palmer, J. (1998). Environmental education in the 21st century: Theory, practice, progress and promise. Routledge.

Citazione stile Chigago Style (17a edizione)

Palmer, Joy. Environmental Education in the 21st Century: Theory, Practice, Progress and Promise. London ; New York: Routledge, 1998.

Citatione MLA (9a ed.)

Palmer, Joy. Environmental Education in the 21st Century: Theory, Practice, Progress and Promise. Routledge, 1998.