Kogan, Benjamin A. Health: man in a changing environment [by] Benjamin A. Kogan. - 2d ed. - New York, Harcourt, Brace, Jovanovich [1974] - xiii, 790, xxvi p. illus. 25 cm. Includes bibliographical references. ISBN: 015535583X Subjects--Topical Terms: Hygiene. LC Class. No.: RA776.5 / .K6 1970