APA aipamena

Krebs, C. J. (2001). The Ecology Place [Đĩa CD-ROM] (5th ed.). San Francisco: Benjamin Cummings.

Chicago Style aipamena

Krebs, Charles J. The Ecology Place [Đĩa CD-ROM]. 5th ed. San Francisco: Benjamin Cummings, 2001.

MLA aipamena

Krebs, Charles J. The Ecology Place [Đĩa CD-ROM]. 5th ed. San Francisco: Benjamin Cummings, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.