Unger, I. (1995). These United States: The questions of our past. Englewood Cliffs, N.J: Prentice-Hall.
シカゴスタイル引用形Unger, Irwin. These United States: The Questions of Our Past. Englewood Cliffs, N.J: Prentice-Hall, 1995.
MLA引用形式Unger, Irwin. These United States: The Questions of Our Past. Englewood Cliffs, N.J: Prentice-Hall, 1995.
警告: この引用は必ずしも正確ではありません.