TY  - BOOK
AU  - Fang, Irving.
TI  - A history of mass communication: :six information revolutions. 
SN  - 9781138173743
AV  - P90  .F26 1997
PY  - 1997///
CY  - New York
PB  - Focal Press
KW  - Communication
KW  - History
N1  - Includes bibliographical references (p. ) and index.
ER  -