Sex perfection : a new approach to the sex life of mankind

MLA

Urban, Rudolf, and Kenneth Walker. Sex Perfection : a New Approach to the Sex Life of Mankind. 8e ed. London [u.a.]: Rider, 1964.

APA

Urban, R., & Walker, K. (1964). Sex perfection : a new approach to the sex life of mankind. 8e ed. London [u.a.]: Rider.

Chicago

Urban, Rudolf, and Kenneth Walker. Sex Perfection: A New Approach to the Sex Life of Mankind. 8e ed. London [u.a.]: Rider, 1964.