APA (7th ed.) Citation

Gathorne-Hardy, J. (1981). Marriage, love, sex, and divorce. Summit Books.

Chicago Style (17th ed.) Citation

Gathorne-Hardy, Jonathan. Marriage, Love, Sex, and Divorce. New York: Summit Books, 1981.

MLA (9th ed.) Citation

Gathorne-Hardy, Jonathan. Marriage, Love, Sex, and Divorce. Summit Books, 1981.