APA (7th ed.) Citation

Packard, E., & Kramer, A. (1983). Underground kingdom. Bantam Books.

Chicago Style (17th ed.) Citation

Packard, Edward, and Anthony Kramer. Underground Kingdom. New York: Bantam Books, 1983.

MLA (9th ed.) Citation

Packard, Edward, and Anthony Kramer. Underground Kingdom. Bantam Books, 1983.