000
00259nam a2200109Ia 4500
008
220201s1983 xx 000 0 eng d
100
_a
CROFT G M
245
0
_a
COMPUTER STUDIES
260
_a
CANADA
_b
HODDERS AND STOUGHTON
_c
1983
300
_a
216
942
_2
ddc
999
_c
91156
_d
91156