TY  - BOOK
AU  - Hauenstein,A.Dean
AU  - Bachmeyer,Steven A.
TI  - The World of communications: audiovisual media 
SN  - 873456629
U1  - 302.23 H368 1975 
PY  - 1975///
CY  - Illinois
PB  - McKnight Publishing Company
KW  - Communications media
N1  - Includes index
ER  -