Ludwig, Arnold M. Principles of clinical psychiatry / Arnold M. Ludwig. - 2nd ed., rev. and expanded. - New York : Free Press ; London : Collier Macmillan, c1986. - xii, 660 p. : ill. Includes bibliographies and index. ISBN: 0029193508 9780029193501 Subjects--Topical Terms: Diagnosis, DifferentialMental DisordersMental Disorders National Library of Medicine Call No.: WM 141 / .L83 1986