000
00250nam a2200121 a 4500
999
_c
5249
_d
5249
041
_a
English
082
_a
003
_b
SW
100
_a
Swarup Etal, Kanti
_e
Au
245
_a
Operations Research
250
_a
2
260
_c
1977
_b
Sultan & Chand
942
_c
BK