Suchman, Edward A, <br/><br/>
Evaluative research :  principles and practice in public service and social action programs / 
Edward A. Suchman. 
 - 186 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ciencias sociales--Metodología.
<br/><br/><label>Dewey Class. No.: </label>300.18  / S942e 1976