TY  - BOOK
AU  - Gass,Saul I.
TI  - Linear programming.-5th ed.: methods and applications 
SN  - 048643284X (pbk.)
PY  - 2003///
CY  - New York
PB  - Dover Publications
KW  - Linear programming
N1  - Reprint. Originally published: New York : McGraw-Hill, 1985
ER  -