Lenski, Gerhard Emmanuel Human societies a macrolevel introduction to sociology [by] Gerhard Lenski. - New York McGraw-Hill [1970] - xv, 525 p. illus. 24 cm. Includes bibliographical references. LCCN: 73100804 Subjects--Topical Terms: SociologySocial evolution LC Class. No.: HM51 / .L57 Dewey Class. No.: 301