Gray,John. Men are from mars, women are from venus: The classic guide to understanding the opposite sex. HaperCollins Publishers Inc.
Chicago Style (17th ed.) CitationGray,John. Men Are from Mars, Women Are from Venus: The Classic Guide to Understanding the Opposite Sex. New York: HaperCollins Publishers Inc.
MLA (8th ed.) CitationGray,John. Men Are from Mars, Women Are from Venus: The Classic Guide to Understanding the Opposite Sex. HaperCollins Publishers Inc.
Warning: These citations may not always be 100% accurate.