Hardison, O. B. (1966). Practical rhetoric. Appleton-Century-Crofts.
Chicagoスタイル(17版)引用形式Hardison, O. B. Practical Rhetoric. New York: Appleton-Century-Crofts, 1966.
MLA(9版)引用形式Hardison, O. B. Practical Rhetoric. Appleton-Century-Crofts, 1966.
警告: この引用は必ずしも正確ではありません.