TY  - BOOK
AU  - Bullough,Robert V.
TI  - Creating instructional materials
SN  - 0675208688
PY  - 1988///
CY  - Columbus
PB  - Merrill
KW  - Teaching
KW  - Aids and devices
KW  - Audio-visual materials
N1  - Includes bibliographies and index
ER  -