Hefferon, Kathleen L. Let thy food be thy medicine: Hefferon, Kathleen L. - New York Oxford University Press, 2012 - 194 p. : ISBN: 9780199873975 (hardcover : alk. paper) Subjects--Topical Terms: Ethnobotany.; Herbs; Materia medica, Vegetable. LC Class. No.: RS164 / .H335 2012