Cita APA (7a ed.)

Laird, E., & Simonds, D. (1995). Simon and the spy. Longman.

Cita Chicago Style (17a ed.)

Laird, Elizabeth, y David Simonds. Simon and the Spy. China: Longman, 1995.

Cita MLA (8a ed.)

Laird, Elizabeth, y David Simonds. Simon and the Spy. Longman, 1995.