Gertler, Paul J. <br/><br/>
Impact evaluation in practice / 
by Paul J. Gertler ... [et al.]. 
 - Washington, D.C :  World Bank,  2011. 
 - xvi, 244  p :  ill ;   cm. 
<br/><br/><label>ISBN: </label>9780821385418 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development projects--Evaluation.<br/>Evaluation research (Social action programs).
<br/><br/><label>LC Class. No.: </label>HD75.9  / .I47