Cita APA (7a ed.)

Higgins, P. M. (2008). Number story: From counting to cryptography. Copernicus.

Cita Chicago Style (17a ed.)

Higgins, Peter M. Number Story: From Counting to Cryptography. London: Copernicus, 2008.

Cita MLA (8a ed.)

Higgins, Peter M. Number Story: From Counting to Cryptography. Copernicus, 2008.