simpson,
effective audio-visual:a user's handbook: robert; - 1 - uk: focal press 1987, - 208, 26
no index
includes references
0-240-51254-5 (hard cover):
s--
audio-visual materials
001 553 sim
effective audio-visual:a user's handbook: robert; - 1 - uk: focal press 1987, - 208, 26
no index
includes references
0-240-51254-5 (hard cover):
s--
audio-visual materials
001 553 sim