Clarke, Alan <br/><br/>
Evaluation research :  an introduction to principles, methods and practice 

 - London:  SAGE,  1999 
 - viii,216p.;  23cm. 
<br/><br/><label>ISBN: </label>0761950958 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIAL SCIENCE
<br/><br/><label>Dewey Class. No.: </label>300.72  / CLA