Robinson, W. J. (1929). Practical prevenception, or, The technique of birth control: For the medical profession only. American Biological Society.
Chicago-referens (17:e uppl.)Robinson, William J. Practical Prevenception, or, The Technique of Birth Control: For the Medical Profession Only. Hoboken, N. J.: American Biological Society, 1929.
MLA-referens (8:e uppl.)Robinson, William J. Practical Prevenception, or, The Technique of Birth Control: For the Medical Profession Only. American Biological Society, 1929.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.