Patterson, J. T. (1976). America in the twentieth century. Harcourt.
Chicagoスタイル(17版)引用形式Patterson, James T. America in the Twentieth Century. New York: Harcourt, 1976.
MLA(9版)引用形式Patterson, James T. America in the Twentieth Century. Harcourt, 1976.
警告: この引用は必ずしも正確ではありません.