Weiss, Carol H. <br/><br/>
Investigación evaluativa  métodos para determinar la eficiencia de los programas de acción 
Carol H. Weiss. 
 - 2. ed, 3. reimp. 
 - México  Editorial Trillas  1996. 
 - 183 p. 
<br/><br/> Translation of: Evaluation research, methods of assessing program effectiveness.  Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)<br/>Evaluation<br/>Evaluation--Methodology.