APA (7th ed.) Zitazioa
Hoffmann, F. L. (1915). The Mortality from cancer throughout the world.
Chicago Style (17th ed.) Zitazioa
Hoffmann, Frederick L. The Mortality from Cancer Throughout the World. Newark, 1915.
MLA (9th ed.) Zitazioa
Hoffmann, Frederick L. The Mortality from Cancer Throughout the World. 1915.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.