000
00301nam a2200121Ia 4500
008
220201s1999 xx 000 0 eng d
082
_b
SIL
100
_a
Silberslzatz, K & Galvin, P B
245
0
_a
Opertating system concepts
260
_a
Sydeny
_b
Addism Wesley
_c
1999
300
_a
886
942
_2
ddc
999
_c
27977
_d
27977