APA aipamena

Wratten, S. D. (1980). Field and laboratory exercises in ecology. London: Arnold.

Chicago Style aipamena

Wratten, Stephen D. Field and Laboratory Exercises in Ecology. London: Arnold, 1980.

MLA aipamena

Wratten, Stephen D. Field and Laboratory Exercises in Ecology. London: Arnold, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.