APA (7e ed.) Bronvermelding

Dale, E. (1959). Audio-visual methods in teaching (2a. ed.). Henry Holt and Company.

Chicago (17e ed.) Bronvermelding

Dale, Edgar. Audio-visual Methods in Teaching. 2a. ed. Nueva York: Henry Holt and Company, 1959.

MLA (9e ed.) Bronvermelding

Dale, Edgar. Audio-visual Methods in Teaching. 2a. ed. Henry Holt and Company, 1959.