Dale, Edgar.
Audio-visual methods in teaching / Edgar Dale. - New York : Dryden, 1946 (1950 printing). - ix, 534 p. : ill. ; 26 cm.
Includes index.
Audio-visual education.
371.33 / DAA
Audio-visual methods in teaching / Edgar Dale. - New York : Dryden, 1946 (1950 printing). - ix, 534 p. : ill. ; 26 cm.
Includes index.
Audio-visual education.
371.33 / DAA