TY  - BOOK
AU  - Fang, Irving
TI  - A History of Mass Communication: Six Information Revolutions 
SN  - 0240802543
AV  - P 90 .F26 1997
PY  - 1997///
CY  - Boston
PB  - Focal Press
KW  - Communication
KW  - History
N1  - Includes Index and Bibliography; MC
ER  -