APA (7th ed.) Citation

Gwaltney, F. I. (1955). The day the century ended. Rinehart.

Chicago Style (17th ed.) Citation

Gwaltney, Francis Irby. The Day the Century Ended. New York: Rinehart, 1955.

MLA (9th ed.) Citation

Gwaltney, Francis Irby. The Day the Century Ended. Rinehart, 1955.