American heritage. (1966). The american heritage pictorial atlas of united states history. American Heritage Publishing Company/ McGraw-Hill.
Cita Chicago (17th ed.)American heritage. The American Heritage Pictorial Atlas of United States History. New York: American Heritage Publishing Company/ McGraw-Hill, 1966.
Cita MLA (9th ed.)American heritage. The American Heritage Pictorial Atlas of United States History. American Heritage Publishing Company/ McGraw-Hill, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.