TY - BOOK AU - Gujarati,Damodar N. TI - Essentials of conometrics SN - 0071163069 U1 - 330.015195 23 PY - 1999/// CY - Boston, Massachusetts : PB - Mc Graw Hill , KW - Econometrics ; Econometrics - Statistical methods N1 - Includes bibliographical references and indexes ER -