TY  - BOOK
AU  - Thierauf Robert J
AU  -  Niehaus John F
TI  - Introduction to data  proccessing for business
U1  - X:(D6,9(B), M0 
PY  - 1980///
CY  - New York
PB  - John Wiley U S A     
KW  - Operations Rersearch Economics
ER  -