JOSHUA D. ANGRIST & JORN-STEFFEN PISCHKE <br/><br/>
MASTERING METRICS: THE PATH FROM CAUSE TO EFFECT 

 -  PRINCETON UNIVERSITY PRESS 
<br/><br/><label>ISBN: </label>9780691152844 
<br/><br/><label>Dewey Class. No.: </label>CQR  / ANG