APA (7e ed.) Bronvermelding

Sarrel, L. J., & Sarrel, P. M. (1984). Sexual turning points: The seven stages of adult sexuality. Macmillan.

Chicago (17e ed.) Bronvermelding

Sarrel, Lorna J., en Philip M. Sarrel. Sexual Turning Points: The Seven Stages of Adult Sexuality. New York: Macmillan, 1984.

MLA (9e ed.) Bronvermelding

Sarrel, Lorna J., en Philip M. Sarrel. Sexual Turning Points: The Seven Stages of Adult Sexuality. Macmillan, 1984.