Clarke, Alan, <br/><br/>
Evaluation research :  an introduction to principles, methods, and practice / 
Alan Clarke with Ruth Dawson. 
 - London ;  Thousand Oaks, Calif. :  SAGE,  1999. 
 - viii, 216 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>076195094X 0761950958 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)