000
00257nam a2200109Ia 4500
008
160122s9999 xx 000 0 und d
041
_a
English
100
_a
Prem Kumar Gupta
245
_a
Operation Research
260
_b
Delhi:S Chand
_c
2014
300
_a
1498p.
999
_c
6967
_d
6967