Evaluation research methods  a basic guide 
edited by Leonard Rutman 
 - Beverly Hills  Sage Publications  1977 
 - 241 p. ; 22 cm. 
 - Sage focus editions  3 .
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0803909071 
<br/><br/><label>LCCN: </label>77-017264 //r853 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)