TY  - BOOK
AU  - Ball, John
AU  - Byrnes, Francis C.
TI  - Research, principles, and practices in visual communication
U1  - 371.33 
PY  - 1960///
CY  - Washington, D.C.
PB  - National Education Association
KW  - Comunicación de masas
KW  - Educación audiovisual
ER  -