Cita APA (7a ed.)

American Medical Association. Department of Graduate Medical Education. editor literario. (1972). Directory of approved internships and residencies 1972-73. A.M.A.

Cita Chicago Style (17a ed.)

American Medical Association. Department of Graduate Medical Education. editor literario. Directory of Approved Internships and Residencies 1972-73. Chicago: A.M.A, 1972.

Cita MLA (9a ed.)

American Medical Association. Department of Graduate Medical Education. editor literario. Directory of Approved Internships and Residencies 1972-73. A.M.A, 1972.