APA (7th ed.) Citation

Hopson, J. L. (1979). Scent signals: The silent language of sex. Morrow.

Chicago Style (17th ed.) Citation

Hopson, Janet L. Scent Signals: The Silent Language of Sex. New York: Morrow, 1979.

MLA (9th ed.) Citation

Hopson, Janet L. Scent Signals: The Silent Language of Sex. Morrow, 1979.