APA(7版)引用形式

Unger, I., & Unger, D. (1995). These United States: The questions of our past (6th, combined ed.). Prentice Hall.

Chicagoスタイル(17版)引用形式

Unger, Irwin, , Debi Unger. These United States: The Questions of Our Past. 6th, combined ed. Englewood Cliffs, N.J.: Prentice Hall, 1995.

MLA(9版)引用形式

Unger, Irwin, , Debi Unger. These United States: The Questions of Our Past. 6th, combined ed. Prentice Hall, 1995.

警告: この引用は必ずしも正確ではありません.