Cita APA (7a ed.)

Cumming, C. 1. a. (2012). A spy by nature (This paperback edition 2012.). HarperCollinsPublishers.

Cita Chicago Style (17a ed.)

Cumming, Charles 1971- autor. A Spy by Nature. This paperback edition 2012. London: HarperCollinsPublishers, 2012.

Cita MLA (9a ed.)

Cumming, Charles 1971- autor. A Spy by Nature. This paperback edition 2012. HarperCollinsPublishers, 2012.