APA (7th ed.) Citation

Westheimer, R. K. (1994). Dr. Ruth's encyclopedia of sex. Continuum.

Chicago Style (17th ed.) Citation

Westheimer, Ruth K. Dr. Ruth's Encyclopedia of Sex. New York: Continuum, 1994.

MLA (8th ed.) Citation

Westheimer, Ruth K. Dr. Ruth's Encyclopedia of Sex. Continuum, 1994.