APA (7th ed.) Citation

Allen, R. D. (1995). Biology: A critical thinking approach. McGraw-Hill.

Chicago Style (17th ed.) Citation

Allen, Robert D. Biology: A Critical Thinking Approach. Boston, Massachusetts: McGraw-Hill, 1995.

MLA (9th ed.) Citation

Allen, Robert D. Biology: A Critical Thinking Approach. McGraw-Hill, 1995.