Dale, Edgar, 1900- Audio-visual methods in teaching. - Rev. ed. - New York, Dryden Press [1954] - 534 p. illus. 26 cm. - Dryden Press professional books in education . LCCN: 54010722 Subjects--Topical Terms: Audio-visual education. LC Class. No.: LB1043 / .D3 1954 Dewey Class. No.: 371.335 RIN