TY - BOOK AU - Heckman, James J. and Leamer, Edward, ed.; d TI - Handbook of econometrics SN - 9780444532008 U1 - 330.015195 PY - 2007/// CY - Amsterdam PB - North Holland UR - http://www.sciencedirect.com/science/handbooks/15734412/6/part/PB ER -