TY  - BOOK
AU  - Humby,Edward
AU  - Robinson,Philip Bedford
TI  - Computers : cassette 2
SN  - 0304302465
U1  - PE/1128 
PY  - 1979///
CY  - London
PB  - Cassell Ltd.
KW  - English language -- Textbooks for foreign speakers.
KW  - Readers -- Computers
ER  -