RecordDetails
London : Collins, 1989.
45 p. : ill. ; 18 cm.


Computers : from beads to bytes / Peter Dewar.
Dewar, Peter.
London : Collins, 1989.
004 D5155 22
D5155
Computers.
Readers.
45 p. : ill. ; 18 cm.
9780003702811 (pbk.) :
0003702812 (pbk.)