Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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