Zarkowska, Ewa. <br/><br/>
Problem behaviour in people with severe learning disabilities :  a practical guide to a constructional approach / 
Ewa Zarkowska and John Clements. 
 - London :  Baltimore, Md. :  Croom Helm ;  P.H. Brooks Pub. Co. [distributor],  c1988. 
 - xi, 208 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0709930143 
<br/><br/><label>LCCN: </label>88168186  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning disabilities.<br/>Behavior modification.
<br/><br/><label>Dewey Class. No.: </label>370.15