Dale, Edgar.
Audio-visual : methods in teaching / Edgar Dale. - Rev ed. - London : The dryden press, c 1954 - ix, 534 p. : ill. ; 24 cm.
Includes index.
328
328
Audio visual--study.
371.33 / D153a
Audio-visual : methods in teaching / Edgar Dale. - Rev ed. - London : The dryden press, c 1954 - ix, 534 p. : ill. ; 24 cm.
Includes index.
328
328
Audio visual--study.
371.33 / D153a