TY - BOOK AU - Koopmans, Lambert H TI - An introduction to contemporary statistics SN - 0878722920 AV - QA276.A1 K66 U1 - 519.5 19 PY - 1981/// CY - Boston, Mass PB - Duxbury Press KW - Statistics KW - Sears List of Subject Headings N1 - Includes index ER -