Evaluation research methods  a basic guide 
edited by Leonard Rutman 
 - 2nd ed. 
 - London  Sage  1984 
 - 239p.  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation-Research methods
<br/><br/><label>Dewey Class. No.: </label>658.404  / EVA