APA aipamena

(1981). The Evolving Biosphere General / Editor, Ph Greenwood; Editor, P L. Porey. Cambridge University Press.

Chicago Style aipamena

The Evolving Biosphere General / Editor, Ph Greenwood; Editor, P L. Porey. Cambridge University Press, 1981.

MLA aipamena

The Evolving Biosphere General / Editor, Ph Greenwood; Editor, P L. Porey. Cambridge University Press, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.