ebrary, Inc, Dickinson, J., Lee, R. H., & McDonald, F. (1999). Empire and nation (2nd ed.). Liberty Fund.
Dyfyniad Arddull Chicagoebrary, Inc, John Dickinson, Richard Henry Lee, and Forrest McDonald. Empire and Nation. 2nd ed. Indianapolis, Ind.: Liberty Fund, 1999.
Dyfyniad MLAebrary, Inc, et al. Empire and Nation. 2nd ed. Liberty Fund, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.