This has been called one of Freud's "most momentous and original contributions to human knowledge." It stands alongside Interpretation of Dreams as his best-known work.
Three Contributions to Theory of Sex
(Second Edition, Second Reprinting)
(Second Edition, Second Reprinting)
Sigmund Freud, LL.D.
Authorized translation by A.A. Brill, PH.B., M.D.
With introduction by James J. Putman, M.D.
Nervous and Mental Disease Monograph Series No. 7
Nervous and Mental Disease Publishing Co.
New York, 1920
