Parker, G. (1979). The Countries of community Europe: A Geographical Survey of Contemporary issues. St. Martins pr..
Dyfyniad Arddull ChicagoParker, Geoffrey. The Countries of Community Europe: A Geographical Survey of Contemporary Issues. New York: St. Martins pr., 1979.
Dyfyniad MLAParker, Geoffrey. The Countries of Community Europe: A Geographical Survey of Contemporary Issues. St. Martins pr., 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.