Penner, C. (1997). The married guy's guide to great sex: Building a passionate, intimate and fun love life. Tyndale House Publishers.
Citace podle Chicago (17th ed.)Penner, Clifford. The Married Guy's Guide to Great Sex: Building a Passionate, Intimate and Fun Love Life. Illinois: Tyndale House Publishers, 1997.
Citace podle MLA (9th ed.)Penner, Clifford. The Married Guy's Guide to Great Sex: Building a Passionate, Intimate and Fun Love Life. Tyndale House Publishers, 1997.
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