000
00336nam a2200157Ia 4500
700
_a
Packer
100
_a
Haas
250
_a
3rd ed
365
_b
9.6
942
_c
BK
654
_a
245
_a
Preparation and use of audio-visual aids
260
_a
Englewood Cliffs
_b
Prentice Hall
_c
1962
082
_a
371.33
300
_a
x,381
999
_c
414867
_d
414867
041
_a
eng