Angrist, Joshua D. <br/><br/>
Mostly harmless econometrics  : an empiricist's companion / 

 - Princeton:  Princeton University Press,  2008 
 - xiii, 373p. Bibl. Index. 
<br/><br/><label>ISBN: </label>9780691120355 
<br/><br/><label>Dewey Class. No.: </label>330.015195  / An593.MH