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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.