000
00257nam a2200121Ia 4500
100
_a
KALAVATHY S
020
_a
81-259-1275-4
365
_c
RS
365
_d
1
942
_c
MBABK
245
_a
Operation Research
260
_b
Vikas Publishing House
_c
1995
_a
Delhi
999
_c
6107
_d
6107