APA (7th ed.) Zitazioa

Cottrell, A. (1978). Environmental economics: An introduction for students of the resource and environmental sciences. Edward Arnold.

Chicago Style (17th ed.) Zitazioa

Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Londres: Edward Arnold, 1978.

MLA (9th ed.) Zitazioa

Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Edward Arnold, 1978.