APA (7th ed.) Citation

Campton, D., & Jones, A. L. (1978). The missing jewel: A thriller for intermediate learners of english. BBC.

Chicago Style (17th ed.) Citation

Campton, David, and A. L. Jones. The Missing Jewel: A Thriller for Intermediate Learners of English. Londres: BBC, 1978.

MLA (9th ed.) Citation

Campton, David, and A. L. Jones. The Missing Jewel: A Thriller for Intermediate Learners of English. BBC, 1978.