APA (7th ed.) Citation

Guttman, B. S., & Hopkins III, J. W. (1983). Understanding biology. Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Citation

Guttman, Burton S., and Johns W. Hopkins III. Understanding Biology. Harcourt Brace Jovanovich, 1983.

MLA (8th ed.) Citation

Guttman, Burton S., and Johns W. Hopkins III. Understanding Biology. Harcourt Brace Jovanovich, 1983.

Warning: These citations may not always be 100% accurate.