TY  - BOOK
AU  - Crowley,David
AU  - Heyer,Paul
TI  - Communication in history: Technology, culture, society 
SN  - 0801331331
PY  - 1999///
CY  - New York
PB  - Addison Wesley Longman
KW  - Communication
KW  - History
N1  - Includes bibliographical references and index
ER  -