Cotton, H. A. (1912). Some problems in the study of heredity in mental diseases. Carnegie Institution of Washington, Eugenics Record Office.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)Cotton, Henry Andrews. Some Problems in the Study of Heredity in Mental Diseases. Carnegie Institution of Washington, Eugenics Record Office, 1912.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.