Heffner, R. D. (1965). A Documentary history of the United States. New American Library.
Chicagoスタイル(17版)引用形式Heffner, Richard D. A Documentary History of the United States. New York: New American Library, 1965.
MLA(9版)引用形式Heffner, Richard D. A Documentary History of the United States. New American Library, 1965.
警告: この引用は必ずしも正確ではありません.