APA (7e ed.) Bronvermelding

(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.

Chicago (17e ed.) Bronvermelding

(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.

MLA (8e ed.) Bronvermelding

(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.

Let op: Deze citaties zijn niet altijd 100% accuraat.