TY  - BOOK
AU  - Kerrod,Robin
TI  - Communications
T2  - Let's Investigate Science
SN  - 1854356240
AV  - TK5102.4 K41 C6 1994
PY  - 1994///
CY  - New York
PB  - Marshall Cavendish
KW  - Telecommunication
KW  - Juvenile literature
ER  -