Posavac, Emil J. <br/><br/>
Program Evaluation :  Methods and case studies /by 
Emil J. Posavac 
 - 8th ed.International student edition 
 - London and New York  Routledge Taylor & Francis group  2011 
 - xvi,319p. 
<br/><br/><label>ISBN: </label>978-1138091047 
<br/><br/><label>LC Class. No.: </label>H52.5  / .U5P62 2011