APA (7th ed.) Citation
Maps.com (Firm) & ebrary, Inc. (2000). State of the nation 1900. Maps.com.
Chicago Style (17th ed.) Citation
Maps.com (Firm) and Inc ebrary. State of the Nation 1900. [S.l.]: Maps.com, 2000.
MLA (9th ed.) Citation
Maps.com (Firm) and Inc ebrary. State of the Nation 1900. Maps.com, 2000.
Warning: These citations may not always be 100% accurate.