World Book Encyclopedia, inc. (1985). Christmas in Ireland. World Book Encyclopedia.
Chicagoスタイル(17版)引用形式World Book Encyclopedia, inc. Christmas in Ireland. Chicago: World Book Encyclopedia, 1985.
MLA(8版)引用形式World Book Encyclopedia, inc. Christmas in Ireland. World Book Encyclopedia, 1985.
警告: この引用は必ずしも正確ではありません.