Angrist Joshua D Mostly harmless econometrics An empiricist's companion. - New Jersey Princeton University Press 2009 - 373p cm. ISBN: 1641.8499999999999 Standard No.: 105360 Source: 517A, 19/01/2010, Pioneer Book Distributors Textual Subjects--Topical Terms: Buisness Economics Dewey Class. No.: X:(B), P9