TY  - BOOK
TI  - Teaching and media: a systematic approach
SN  - 0138913331
AV  - LB1043 .G318
PY  - 1971///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Audio-visual education
KW  - Teaching
KW  - Aids and devices
N1  - Includes bibliographies.
ER  -