Chess, Wayne A. Human behavior and the social environment : : a social systems model / [electronic resource] / Wayne A. Chess, Julia M. Norlin.. — 2nd ed.. — Boston : : Allyn and Bacon,, c1991.. — xiii, 447 p. : : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0205128246 (alk. paper) : $30.00 9780205128242 (alk. paper) LCCN: 90041979 Subjects--Topical Terms: Social service.Social systems.Social systems--Mathematical models.Human behavior. LC Class. No.: HV40 / .C53 1991 Dewey Class. No.: 361.3/2