Cita APA (7a ed.)

Alexander, L. G., & Howe, T. (1983). Foul play. Longman Group Limited.

Cita Chicago Style (17a ed.)

Alexander, L. G., y Tim Howe. Foul Play. Harlow: Longman Group Limited, 1983.

Cita MLA (9a ed.)

Alexander, L. G., y Tim Howe. Foul Play. Longman Group Limited, 1983.