Cita APA (7a ed.)

Holdcroft, T. (2011). Spy, spy again: True tales of failed espionage. Annick Press.

Cita Chicago Style (17a ed.)

Holdcroft, Tina. Spy, Spy Again: True Tales of Failed Espionage. Toronto: Annick Press, 2011.

Cita MLA (8a ed.)

Holdcroft, Tina. Spy, Spy Again: True Tales of Failed Espionage. Annick Press, 2011.

Precaución: Estas citas no son 100% exactas.