Knight, J. F. (1979). What a married couple should knew about sex. Pacific Press.
Cita Chicago (17th ed.)Knight, John F. What a Married Couple Should Knew About Sex. Mountain View: Pacific Press, 1979.
Cita MLA (9th ed.)Knight, John F. What a Married Couple Should Knew About Sex. Pacific Press, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.