Cita APA (7th ed.)

Apel, H., & Camozzi, A. (1996). Adult environmental education: A handbook on context and methods. Institute for International Cooperation of the German Adult Education Association.

Cita Chicago (17th ed.)

Apel, Heino, i Anne Camozzi. Adult Environmental Education: A Handbook on Context and Methods. Bonn: Institute for International Cooperation of the German Adult Education Association, 1996.

Cita MLA (9th ed.)

Apel, Heino, i Anne Camozzi. Adult Environmental Education: A Handbook on Context and Methods. Institute for International Cooperation of the German Adult Education Association, 1996.