Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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