张忠元 & 安劬. (2009). 性知识必读: Knowledges you must know on sex. 中国妇女出版社.
Chicago Style (17th ed.) Citation张忠元 and 安劬. 性知识必读: Knowledges You Must Know on Sex. 中国妇女出版社, 2009.
MLA (8th ed.) Citation张忠元 and 安劬. 性知识必读: Knowledges You Must Know on Sex. 中国妇女出版社, 2009.
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