Rand McNally and Company. (1993). Atlas of American history. Houghton Mifflin.
Dyfyniad Arddull ChicagoRand McNally and Company. Atlas of American History. Chicago: Houghton Mifflin, 1993.
Dyfyniad MLARand McNally and Company. Atlas of American History. Houghton Mifflin, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.