APA aipamena

Allen, R. D. (1995). Biology: A Critical Thinking Approach. Dubuque, Iowa: Wm. C. Brown.

Chicago Style aipamena

Allen, Robert D. Biology: A Critical Thinking Approach. Dubuque, Iowa: Wm. C. Brown, 1995.

MLA aipamena

Allen, Robert D. Biology: A Critical Thinking Approach. Dubuque, Iowa: Wm. C. Brown, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.