Stromberg, R. N. (1992). Europe in the 20th century. Prentice Hall.
Chicagoスタイル(17版)引用形式Stromberg, Roland N. Europe in the 20th Century. New Jersey: Prentice Hall, 1992.
MLA(9版)引用形式Stromberg, Roland N. Europe in the 20th Century. Prentice Hall, 1992.
警告: この引用は必ずしも正確ではありません.