APA (7e ed.) Bronvermelding

DOFF, A., & BECKET, C. (1993). Listening 1. Canbridge University Press.

Chicago (17e ed.) Bronvermelding

DOFF, Adrian, en Carolyn BECKET. Listening 1. New York: Canbridge University Press, 1993.

MLA (9e ed.) Bronvermelding

DOFF, Adrian, en Carolyn BECKET. Listening 1. Canbridge University Press, 1993.