Patton, Michael Quinn <br/><br/>
Qualitative evaluation and research methods. (2nd ed.) 

 - 2nd ed. 
 - London:  SAGE Publications  1990 
 - 532p. 
<br/><br/> Rev. ed. of: Qualitative evaluation methods. c1980. -Includes bibliographical references (p. 507-523) and index. 
<br/><br/><label>ISBN: </label>0803937792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EVALUATION RESEARCH (SOCIAL ACTION PROGRAMS)<br/>SOCIAL SCIENCES--RESEARCH <br/>RESEARCH--METHODOLOGY<br/>RESEARCH COLLABORATION
<br/><br/><label>LC Class. No.: </label>H 62 Pat