000
00307nam a2200133Ia 4500
008
220201s1984 xx 000 0 eng d
100
_a
NAGRATH IJ
245
0
_a
SYSTEM MODELLING AND ANALYSIS
250
_a
2
260
_a
NEW YORK
_b
MCGRAW HILL
_c
1984
300
_a
647
700
_a
GOPAL M
942
_2
ddc
999
_c
90077
_d
90077