TY  - BOOK
AU  - Gass,Saul I.
TI  - Linear programming: methods and applications 
SN  - 0070229686 :
AV  - T57.74 .G3 1975
U1  - 519.72 
PY  - 1975///
CY  - New York
PB  - McGraw-Hill
KW  - Linear programming
N1  - Includes index; Bibliography: p. 371-381
ER  -