Gardner William I <br/><br/>
Behavior modification in mental retardation :  the education and rehabilitation of the mentally retarded adolescent and adult / 
by William I. Gardner 
 - London :  University of London Press,  1972. 
 - ix, 379 p. :  ill ;  25 cm 
 - Modern applications in psychology .
<br/><br/> Originally published:Chicago:Aldine- Atherton, 1971 
<br/><br/><label>ISBN: </label>0202250008 0340052260 
<br/><br/><label>Subjects--Topical Terms: </label><br/>People with mental disabilities--Rehabilitation
<br/><br/><label>LC Class. No.: </label>HV3004