APA (7th ed.) Zitazioa
Emerson, J. (2009). Lincoln the inventor. Southern Illinois University Press.
Chicago Style (17th ed.) Zitazioa
Emerson, Jason. Lincoln the Inventor. Carbondale: Southern Illinois University Press, 2009.
MLA (9th ed.) Zitazioa
Emerson, Jason. Lincoln the Inventor. Southern Illinois University Press, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.