APA (7th ed.) Zitazioa
Maps.com (Firm) & ebrary, Inc. (2000). State claims to western lands. Maps.com.
Chicago Style (17th ed.) Zitazioa
Maps.com (Firm) eta Inc ebrary. State Claims to Western Lands. [S.l.]: Maps.com, 2000.
MLA (9th ed.) Zitazioa
Maps.com (Firm) eta Inc ebrary. State Claims to Western Lands. Maps.com, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.