APA (7th ed.) Citation

De Camp, L. S. (1963). The ancient engineers ([1st ed.].). Doubleday.

Chicago Style (17th ed.) Citation

De Camp, L. Sprague. The Ancient Engineers. [1st ed.]. Garden City, N.Y.: Doubleday, 1963.

MLA (9th ed.) Citation

De Camp, L. Sprague. The Ancient Engineers. [1st ed.]. Doubleday, 1963.