TY  - BOOK
AU  - Vernon S Gerlach
AU  - Donald Pely
AU  - Rob Melnick
TI  - Teaching and media : a systematic approach
SN  - 9780138913588
U1  - 371.3 
PY  - 1980///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Teaching Instructional Aids
KW  - Education Audio Visual
KW  - Social Sciences
KW  - Education
ER  -