TY  - BOOK
AU  - Smith,Hayden R.
AU  - Nagel,Thomas S.
TI  - Instructional media in the learning process
SN  - 0675091640
AV  - LB 1043 .S64 1972
U1  - 371.33 
PY  - 1972///
CY  - Columbus
PB  - C. E. Merrill Pub
KW  - Teaching
KW  - Aids and devices
KW  - Audio-visual education
N1  - Includes bibliography
ER  -