Positive and negative symptoms in psychosis description research and future directions/ 
by Philip D Harvey (ed.). 
 -  LEA,  1987. 
 - 
<br/><br/><label>Subjects--Personal Names: </label><br/>Philip D Harvey (ed.)
<br/><br/><label>Subjects--Topical Terms: </label><br/> 
<br/><br/><label>Dewey Class. No.: </label> /