Paullin, C. O., & Wright, J. K. (1932). Atlas of the historical geography of the United States. [Washington]: published jointly by Carnegie Institution of Washington and the American Geographicl Society of New York.

Paullin, Charles Oscar, and John Kirtland Wright. Atlas of the Historical Geography of the United States. [Washington]: published jointly by Carnegie Institution of Washington and the American Geographicl Society of New York, 1932.

Paullin, Charles Oscar, and John Kirtland Wright. Atlas of the Historical Geography of the United States. [Washington]: published jointly by Carnegie Institution of Washington and the American Geographicl Society of New York, 1932.