Ogrizek, D. (1949). Great Britain: England, Scotland, and Wales. McGraw-Hill.
Dyfyniad Arddull ChicagoOgrizek, Dor,̌. Great Britain: England, Scotland, and Wales. New York: McGraw-Hill, 1949.
Dyfyniad MLAOgrizek, Dor,̌. Great Britain: England, Scotland, and Wales. McGraw-Hill, 1949.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.