000
00308nam a2200145Ia 4500
008
230523s9999 xx 000 0 und d
100
_a
Kanti Swarup
245
0
_a
Operations Research. Ed.20
250
_a
3
260
_a
Delhi
260
_b
Sultan Chand
260
_c
2022
300
_a
1156
942
_c
TB
999
_c
2098
_d
2098