HELMSTADTER, G. C <br/><br/>
Research concepts in human behaviour:  Education, psychology, sociology / 
G. C. Helmstadter 
 - New Jersey  Prentice - Hall  c1970 
 - xv, 448p.: 
<br/><br/> include bibliographical references and index 
<br/><br/><label>ISBN: </label>0137740832 
<br/><br/><label>Dewey Class. No.: </label>300 HEL