Cita APA (7th ed.)

Middleton, T., & Watson, G. J. (1968). A trick to catch the old one. Ernest Benn Limited.

Cita Chicago (17th ed.)

Middleton, Thomas, i G. J. Watson. A Trick to Catch the Old One. London: Ernest Benn Limited, 1968.

Cita MLA (9th ed.)

Middleton, Thomas, i G. J. Watson. A Trick to Catch the Old One. Ernest Benn Limited, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.