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books.google.com - The sociological, medical, and historical aspects of birth control in the twentieth century have been compiled in this unique, easy-to-use, and comprehensive resource. Objectively written and international in scope, this encyclopedia covers a variety of topics: biology and anatomy, birth control methods...https://books.google.com/books/about/Encyclopedia_of_Birth_Control.html?id=dx1Kz-ezUjsC&utm_source=gb-gplus-shareEncyclopedia of Birth Control