Maps.com (Firm) & ebrary, Inc. (2000). Possible migration routes of the first Americans. Maps.com.
Chicago Style (17th ed.) CitationMaps.com (Firm) and Inc ebrary. Possible Migration Routes of the First Americans. [S.l.]: Maps.com, 2000.
MLA (9th ed.) CitationMaps.com (Firm) and Inc ebrary. Possible Migration Routes of the First Americans. Maps.com, 2000.
Warning: These citations may not always be 100% accurate.