Cotton, H. A. (1912). Some problems in the study of heredity in mental diseases. Carnegie Institution of Washington, Eugenics Record Office.
Chicago-referens (17:e uppl.)Cotton, Henry Andrews. Some Problems in the Study of Heredity in Mental Diseases. Cold Spring Harbor, N.Y.: Carnegie Institution of Washington, Eugenics Record Office, 1912.
MLA-referens (8:e uppl.)Cotton, Henry Andrews. Some Problems in the Study of Heredity in Mental Diseases. Carnegie Institution of Washington, Eugenics Record Office, 1912.
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