TY  - BOOK
AU  - Williams,H.P .
TI  - Model building in mathematical programming 
U1  - 519.92 WIL  
PY  - 1978///.
CY  - Chichester : 
PB  - John Wiley & Sons, 
KW  - Solving  mathmetical programme
KW  - Parametric programming
N1  - Includes index.
ER  -