Rutman, Leonard. <br/><br/>
Evaluation research methods :  a basic guide / 
Leonard Rutman. 
 - Beverly Hills :  Sage Publications,  c1984. 
 - 239 p. ; 
<br/><br/><label>ISBN: </label>0803923368 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)
<br/><br/><label>Dewey Class. No.: </label>300.72  / Ev,2