Chess, Wayne A. <br/><br/>
Human behavior and the social environment :  a social systems model / 
Wayne A. Chess, Julia M. Norlin. 
 - 2nd ed. 
 - Boston :  Allyn and Bacon,  1991. 
 - 447 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0205128246  RM155.38 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social service.<br/>Social systems.<br/>Social systems--Mathematical models.<br/>Human behavior.