000
00299nam a2200121Ia 4500
008
220201s1988 xx 000 0 eng d
082
_a
4.61
_b
MOD
100
_a
Modell,Martin E
245
0
_a
Professionals guide to system analysis
260
_a
NY
_b
Mcgraw Hill
_c
1988
300
_a
317
942
_2
ddc
999
_c
33700
_d
33700