Cita APA (7a ed.)

Willis, S. E., & Wahl, C. W. (1967). Understanding and counseling the male homosexual. J. & A. Churchill.

Cita Chicago Style (17a ed.)

Willis, Stanley E., y Charles William Wahl. Understanding and Counseling the Male Homosexual. London: J. & A. Churchill, 1967.

Cita MLA (9a ed.)

Willis, Stanley E., y Charles William Wahl. Understanding and Counseling the Male Homosexual. J. & A. Churchill, 1967.