TY  - BOOK
AU  - Ritchie,L.David
TI  - Information
T2  - Communication concepts
SN  - 0803939043
U1  - 302.2 
PY  - 1991///
CY  - Newbury Park, Calif.
PB  - Sage Publications
KW  - Communication
KW  - Information theory
N1  - Includes bibliographical references (p. 68-72) and index
ER  -