Patton Michael Quinn. <br/><br/>
Qualitative Evaluation and Research Methods 

 - 2nd ed. 
 - New Delhi  Sage Publications  1990 
 - 532 p. 
<br/><br/><label>ISBN: </label>0803937792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>”SOCIAL SCIENCES -- METHODOLOGY / EVALUATION RESEARCH / QUALITATIVE RSEARCH”
<br/><br/><label>LC Class. No.: </label>H62  / P321Q 1990