TY  - BOOK
AU  - Paul Heyer, David Crowley
AU  - ,
TI  - Communication In History: Technology, Culture, Society
SN  - 0801305985
U1  - 302.2  CRC 
PY  - 1991///
CY  - New York
PB  - Longman
KW  - Communication- History/ Mass media- History
N1  - Commu- MSJ
ER  -