TY  - BOOK
AU  - Forbes,Jean
AU  - Ross,James
TI  - Communications and networks
SN  - 0435346946 :
AV  - Hc 79 .P53
U1  - 380.5 
PY  - 1978///
CY  - London
PB  - Heinemann Educational Books
KW  - Communication and traffic
KW  - Transportation
KW  - Geography
KW  - Network analysis
N1  - Includes index
ER  -