Audio-visual methods in teaching /
Dale, Edgar
Audio-visual methods in teaching / Edgar Dale. - Rev ed. - U.S.A : Henry Holt, 1954. - ix, 534 p. : ill. ; 26 cm.
Audio-visual education.
371.33 / DAL
Audio-visual methods in teaching / Edgar Dale. - Rev ed. - U.S.A : Henry Holt, 1954. - ix, 534 p. : ill. ; 26 cm.
Audio-visual education.
371.33 / DAL