Angrist, Joshua David. Mostly harmless econometrics : an empiricist's companion / Jos hua D. Angrist and Jorn-Steffen Pischke. - Princeton : Princeton University Press, c2009. - xiii, 373 p. : ill. ; 22 cm. Includes bibliographical references (p. [339]-359) and index. ISBN: 9780691120348 (hardcover) 069112034X (hardcover) 9780691120355 (pbk) LCCN: 2008-027917 Subjects--Topical Terms: Econometrics. Regression analysis. Dewey Class. No.: 330.01/5195