TY  - BOOK
AU  - Bullard,John R.
AU  - Mether,Calvin E.
TI  - Audiovisual fundamentals: basic equipment operation and simple materials production 
SN  - 0697060438
PY  - 1974///
CY  - Dubuque, Iowa
PB  - Wm. C. Brown Publishers
KW  - Audio-visual equipment
ER  -