Hoover, H. (1942). America's first crusade. C. Scribner's Sons.
Chicagoスタイル(17版)引用形式Hoover, Herbert. America's First Crusade. New York: C. Scribner's Sons, 1942.
MLA(8版)引用形式Hoover, Herbert. America's First Crusade. C. Scribner's Sons, 1942.
警告: この引用は必ずしも正確ではありません.