APA (7th ed.) Citation

Boswell, J. (1994). Same-sex unions in premodern Europe. Villard Books.

Chicago Style (17th ed.) Citation

Boswell, John. Same-sex Unions in Premodern Europe. New York: Villard Books, 1994.

MLA (9th ed.) Citation

Boswell, John. Same-sex Unions in Premodern Europe. Villard Books, 1994.