APA (7th ed.) Citation

Zepler, E. E. (1951). The technique of radio design (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Zepler, E. E. The Technique of Radio Design. 2nd ed. New York: Wiley, 1951.

MLA (9th ed.) Citation

Zepler, E. E. The Technique of Radio Design. 2nd ed. Wiley, 1951.