Behaviour change :   methodology, concepts, and practice /  
edite d and introduced by Leo A. Hamerlynck, Lee C. Handy and Eric J. Mash. 
 - Ill :   Research Press,   c1973 
 - xiv, 358 p. :    illus. ;    22 cm. 
<br/><br/>Includes bibliographical references: p. 356-358. 
<br/><br/><label>Dewey Class. No.: </label>153.85 BEH