Cita APA (7th ed.)
Paullin, C. O., & Wright, J. K. (1932). Atlas of the historical geography of the United States. Carnegie Inst.; American Geogr. Society.
Cita Chicago (17th ed.)
Paullin, Charles Oscar, i John Kirtland Wright. Atlas of the Historical Geography of the United States. Washington; New York: Carnegie Inst.; American Geogr. Society, 1932.
Cita MLA (9th ed.)
Paullin, Charles Oscar, i John Kirtland Wright. Atlas of the Historical Geography of the United States. Carnegie Inst.; American Geogr. Society, 1932.
Atenció: Aquestes cites poden no estar 100% correctes.