TY  - BOOK
AU  - Keller,Gerald
AU  - Warrack,Brian
TI  - Statistics for management and economics: a systematic approach 
SN  - 0534126782
PY  - 1990///
CY  - Belmont, CA
PB  - Wadworth Publishing
KW  - Economics
KW  - Statistical methods
KW  - Management
ER  -