APA (7e ed.) Bronvermelding

Spratt, M. (1989). Tuning in (1a. ed.). Longman.

Chicago (17e ed.) Bronvermelding

Spratt, Mary. Tuning in. 1a. ed. Londres: Longman, 1989.

MLA (9e ed.) Bronvermelding

Spratt, Mary. Tuning in. 1a. ed. Longman, 1989.