000
00261nam a2200109Ia 4500
008
220201s1999 xx 000 0 eng d
100
_a
VERMA A P
245
0
_a
OPERATIONS RESEARCH
260
_a
DELHI
_b
S K KATARIA AND SONS
_c
1999
300
_a
1231
942
_2
ddc
999
_c
92187
_d
92187