000
00310nam a2200121Ia 4500
008
220204s9999 xx 000 0 und d
082
_b
DOR
100
_a
DORFMAN, R
245
0
_a
Linear programming and economic analysis
260
_a
New York
_b
Mcgraw Hill
_c
1958
650
_a
Linear programming
942
_c
BK
999
_c
23020
_d
23020