Heber Er Gerhard Nature of human behavior ed by Gunter Alther tr by Charles Van Amerongen Heber Er Gerhard - London George Allen and Unwin 1976 - viii, 467p illus Plates cm. Bibliography p 433--450; Glossary p 429--432 Standard No.: 84,718 Source: Textual Subjects--Topical Terms: PSYCHOLOGY Dewey Class. No.: SN1, L6