Havighurst, Robert James, 1900- Developmental tasks and education, by Robert J. Havighurst. - 3d ed. - New York, D. McKay Co. [1972] - vii, 119 p. 21 cm. Includes bibliographical references. LCCN: 73190001 //r892 Subjects--Topical Terms: Genetic psychology. LC Class. No.: BF701 / .H37 1972 Dewey Class. No.: 155