Evaluation and experiment: some critical issues in assessing social programs 
edited by Carl A. Bennett and Arthur A. Lumsdaine 
 - New York  Academic Press  1976 
 - 553p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social service - Research
<br/><br/><label>Dewey Class. No.: </label>Q1084 B439