Knight, J. F. (1979). What a married couple should knew about sex. Pacific Press.
Chicago-referens (17:e uppl.)Knight, John F. What a Married Couple Should Knew About Sex. Mountain View: Pacific Press, 1979.
MLA-referens (9:e uppl.)Knight, John F. What a Married Couple Should Knew About Sex. Pacific Press, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.