APA (7th ed.) Citation

Allen, R. D. (1995). Biology: A critical thinking approach. Wm.C. Brown.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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