TY  - BOOK
AU  - David Crowley
AU  - Paul Heyer
TI  - Communication in history: technology, culture, society
SN  - 0-8013-3133-1
U1  -  302.2 
PY  - 1999///
CY  - Aukland
PB  - Addision Wesley Longman
KW  - Communication-History
ER  -