000
00302nam a2200121Ia 4500
008
161118s2016 xx 000 0 und d
082
_a
001.6425 CEN-M
100
_a
Central Computer Agency
245
0
_a
Microcomputer Operating System
260
_a
London
_b
HMSO
_c
1979
300
_a
52p.
942
_2
ddc
999
_c
21885
_d
21885