Dale, Edgar.
Audio-visual methods in teaching / Edgar Dale. - Rev. ed. - New York : Dryden, 1954. - ix, 534 p. : ill. ; 26 cm.
Includes index.
Audio-visual education.
371.33 / DAA
Audio-visual methods in teaching / Edgar Dale. - Rev. ed. - New York : Dryden, 1954. - ix, 534 p. : ill. ; 26 cm.
Includes index.
Audio-visual education.
371.33 / DAA