Abbott, M. (2009). History skills: A student's handbook (2nd ed.). Routledge.
Chicago Style aipamenaAbbott, Mary. History Skills: A Student's Handbook. 2nd ed. New York: Routledge, 2009.
MLA aipamenaAbbott, Mary. History Skills: A Student's Handbook. 2nd ed. Routledge, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.