TY - BOOK AU - Keller, Gerald. AU - ED - ED - ED - ED - SN - 534358187 SN - 2 PY - 1999///];copyright 1999.46 CY - Pacific Grove PB - Duxbury Press KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Statistical methods.;Statistical methods KW - Management;Economics N1 - 5 ER -