000
00271nam a2200133Ia 4500
020
_a
8121909686
082
_a
658.54 GUP
100
_a
GUPTA, PREM KUMAR
245
_a
OPERATIONS RESEARCH
250
_a
I
260
_b
S CHAND
_c
2014
300
_a
1498
942
_2
ddc
_c
B
999
_c
68070
_d
68070