Mohr, Lawrence B. <br/><br/>
Impact analysis for program evaluation / 

 - Newbury Park :  Sage Publications,  c1992. 
 - xviii, 217, ix p. :  ill. ;  23 cm. 
<br/><br/> Originally published: Chicago, Ill. : Dorsey Press, c1988. 
<br/><br/><label>ISBN: </label>0803949812 (pb) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Policy sciences.<br/>Evaluation research (Social action programs)
<br/><br/><label>Dewey Class. No.: </label>361 SAG 1992 A016 Or.