APA

Dale E., . (1969). Audio-visual methods in teaching. New York: Dryden Press.

Chicago

Dale Edgar, . 1969. Audio-visual methods in teaching. New York: Dryden Press.

Harvard

Dale E., . (1969). Audio-visual methods in teaching. New York: Dryden Press.

MLA

Dale Edgar, . Audio-visual methods in teaching. New York: Dryden Press. 1969.