APA Citation

Unger, I., & Unger, D. (1989). These United States: The questions of our past (Combined 4th ed.). Englewood Cliffs, N.J.: Prentice Hall.

Chicago Style Citation

Unger, Irwin, and Debi Unger. These United States: The Questions of Our Past. Combined 4th ed. Englewood Cliffs, N.J.: Prentice Hall, 1989.

MLA Citation

Unger, Irwin, and Debi Unger. These United States: The Questions of Our Past. Combined 4th ed. Englewood Cliffs, N.J.: Prentice Hall, 1989.

Warning: These citations may not always be 100% accurate.