Higgins, P. M. (2008). Number story: From counting to cryptography. Copernicus Books.
Style de citation Chicago (17e éd.)Higgins, Peter M. Number Story: From Counting to Cryptography. London: Copernicus Books, 2008.
Style de citation MLA (9e éd.)Higgins, Peter M. Number Story: From Counting to Cryptography. Copernicus Books, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.