Knight, J. F. (1979). What a married couple should knew about sex. Pacific Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Knight, John F. What a Married Couple Should Knew About Sex. Mountain View: Pacific Press, 1979.
MLA -ийн эшлэл (9 дэх хэвлэлт)Knight, John F. What a Married Couple Should Knew About Sex. Pacific Press, 1979.
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