(美)凯莱布·埃弗里特(CalebEverett)著. (2018). 数字起源：counting and the course of human cultures. 中信出版集团股份有限公司.
Lua i Stíl Chicago (17ú heag.)(美)凯莱布·埃弗里特(CalebEverett)著. 数字起源：counting and the Course of Human Cultures. 中信出版集团股份有限公司, 2018.
Lua MLA (8ú heag.)(美)凯莱布·埃弗里特(CalebEverett)著. 数字起源：counting and the Course of Human Cultures. 中信出版集团股份有限公司, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.