Rossi, Peter H. <br/><br/>
Evaluation :  a systematic approach 

 - 6 ed. 
 -  1999 
 - xviii, 342 p. : ill; 26 cm 
<br/><br/><label>ISBN: </label>0761908935 (acidfree paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Evaluation research (Social action programs)
<br/><br/><label>LC Class. No.: </label>H62 .R666 1999