APA(7版)引用形式
Gregory, R. (1971). The origins of American intervention in the First World War ([1st ed.].). Norton.
Chicagoスタイル(17版)引用形式
Gregory, Ross. The Origins of American Intervention in the First World War. [1st ed.]. New York: Norton, 1971.
MLA(9版)引用形式
Gregory, Ross. The Origins of American Intervention in the First World War. [1st ed.]. Norton, 1971.
警告: この引用は必ずしも正確ではありません.