TY - BOOK AU - Keller, Gerald. AU - Warrack, Brian,;Bartel, Henry, ED - ED - ED - ED - TI - : a systematic approach SN - 0534086225 (hardcover) SN - 2 PY - 1988///;copyright 1988.46 CY - Belmont, California PB - Wadsworth Publishing Company KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Statistical methods.;Statistical methods KW - Management;Economics N1 - Includes index; 5; Professional ER -