APA (7e ed.) Bronvermelding

Barrett, H. (1968). Practical methods in speech (2d ed.). Holt, Rinehart and Winston.

Chicago (17e ed.) Bronvermelding

Barrett, Harold. Practical Methods in Speech. 2d ed. New York: Holt, Rinehart and Winston, 1968.

MLA (9e ed.) Bronvermelding

Barrett, Harold. Practical Methods in Speech. 2d ed. Holt, Rinehart and Winston, 1968.