APA (7e ed.) Bronvermelding

Palmer, J. A. (1998). Environmental education in the 21st centurytheory, practice, progress and promise. Routledge.

Chicago (17e ed.) Bronvermelding

Palmer, Joy A. Environmental Education in the 21st Centurytheory, Practice, Progress and Promise. Routledge, 1998.

MLA (8e ed.) Bronvermelding

Palmer, Joy A. Environmental Education in the 21st Centurytheory, Practice, Progress and Promise. Routledge, 1998.

Let op: Deze citaties zijn niet altijd 100% accuraat.