APA (7th ed.) Zitazioa

Hudson, P. (2000). History by numbers: An introduction to quantitative. Arnold.

Chicago Style (17th ed.) Zitazioa

Hudson, Pat. History by Numbers: An Introduction to Quantitative. London: Arnold, 2000.

MLA (9th ed.) Zitazioa

Hudson, Pat. History by Numbers: An Introduction to Quantitative. Arnold, 2000.