TY  - BOOK
AU  - Lehman, Maxwell
AU  - Burke, Thomas J.
TI  - Communication technologies and information flow
T2  - Pergamon Policy Studies on Science and Technology
SN  - 0080275281
U1  - 621.38 
PY  - 1981///
CY  - New York
PB  - Pergamon Press
KW  - Telecommunication
ER  -