APA (7th ed.) Citation

Walz, J., & Walz, A. (1959). The undiscovered country. Gollancz.

Chicago Style (17th ed.) Citation

Walz, Jay, and Audrey Walz. The Undiscovered Country. London: Gollancz, 1959.

MLA (8th ed.) Citation

Walz, Jay, and Audrey Walz. The Undiscovered Country. Gollancz, 1959.

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