APA aipamena

David T. Krohne. (2001). General ecology. Pacific Grove, California: Brooks/Cole.

Chicago Style aipamena

David T. Krohne. General Ecology. Pacific Grove, California: Brooks/Cole, 2001.

MLA aipamena

David T. Krohne. General Ecology. Pacific Grove, California: Brooks/Cole, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.