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I02 Education D004493 +
I02.903 Teaching D013663 +
I02.903.847 Teaching Materials D013664 +
I02.903.847.297 Audiovisual Aids D001296
L01 Information Science D007254 +
L01.178 Communications Media D003146 +
L01.178.147 Audiovisual Aids D001296
L01.178.147.117 Books, Illustrated D001878
L01.178.147.269 Exhibits D005085
L01.178.147.426 Maps D008377
L01.178.147.480 Medical Illustration D008488
L01.178.147.545 Models, Structural D008961 +
L01.178.147.598 Motion Pictures D009040
L01.178.147.739 Radio D011845
L01.178.147.846 Tape Recording D013637 +
L01.178.147.898 Television D013690 +
L01.178.147.668 Optical Storage Devices D016249 +
L01.178.147.633 Multimedia D019212