TY  - GEN
AU  - Chang, Yih-long.
AU  - Sullivan, Robert S.
TI  - QS : Quant systems, version 2.0
AV  - T56 Cha.
PY  - 1991///
PB  - Prentice Hall
KW  - Management science
N1  - 4763
N2  - Text accompanied by diskette
ER  -