Haggard, H. W. (1946). Devils, Drugs and Doctors. The Story of the Science of Healing from Medicine-Man to Doctor. Pocket Books, Inc..
Lua i Stíl Chicago (17ú heag.)Haggard, Howard W. Devils, Drugs and Doctors. The Story of the Science of Healing from Medicine-Man to Doctor. New York: Pocket Books, Inc., 1946.
Lua MLA (8ú heag.)Haggard, Howard W. Devils, Drugs and Doctors. The Story of the Science of Healing from Medicine-Man to Doctor. Pocket Books, Inc., 1946.
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