APA (7th ed.) Zitazioa
LaFeber, W. (1992). The American century: A history of the United since the 1890s (4th ed.). McGraw-Hill, Inc..
Chicago Style (17th ed.) Zitazioa
LaFeber, Walter. The American Century: A History of the United Since the 1890s. 4th ed. New York: McGraw-Hill, Inc., 1992.
MLA (9th ed.) Zitazioa
LaFeber, Walter. The American Century: A History of the United Since the 1890s. 4th ed. McGraw-Hill, Inc., 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.