000
002310000a22001090004500
245
_a
ZX 81 basic book
100
_a
Norman, Robin
260
_a
Kent
_b
Butterworths
_c
1982
080
_a
681.3.06
_b
N6
041
_a
EN
942
_c
BK
999
_c
115719
_d
115719