APA (7th ed.) Citation

American Medical Association. (2001). Directory of physicians in the United States (37th ed.). American Medical Association.

Chicago Style (17th ed.) Citation

American Medical Association. Directory of Physicians in the United States. 37th ed. Chicago, Ill.: American Medical Association, 2001.

MLA (9th ed.) Citation

American Medical Association. Directory of Physicians in the United States. 37th ed. American Medical Association, 2001.