Guba, Egon G. <br/><br/>
Fourth generation evaluation 
by Egon G. Guba an Yvonna S. Lincoln 
 - Newbury Park  Sage  1989 
 - 294p. 
<br/><br/><label>ISBN: </label>0803924313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negotiation<br/>Evaluation - Methodology<br/>Social Sciences - Methodology<br/>Social Sciences - Research
<br/><br/><label>Dewey Class. No.: </label>B084 G933