Fox, P. W., & White, G. (1991). Politics, Canada (7th ed.). McGraw-Hill Ryerson.
Dyfyniad Arddull ChicagoFox, Paul W., and Graham White. Politics, Canada. 7th ed. Toronto ; New York: McGraw-Hill Ryerson, 1991.
Dyfyniad MLAFox, Paul W., and Graham White. Politics, Canada. 7th ed. McGraw-Hill Ryerson, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.