Cita APA (7th ed.)

Coelho, P., & Perry, Z. (2017). The spy. Arrow Books.

Cita Chicago (17th ed.)

Coelho, Paulo, i Zoë Perry. The Spy. London: Arrow Books, 2017.

Cita MLA (9th ed.)

Coelho, Paulo, i Zoë Perry. The Spy. Arrow Books, 2017.