APA (7th ed.) Citation

Hornung, J. L. (1952). Radio operating questions and answers (11th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Hornung, Julius Lawrence. Radio Operating Questions and Answers. 11th ed. New York: McGraw-Hill, 1952.

MLA (9th ed.) Citation

Hornung, Julius Lawrence. Radio Operating Questions and Answers. 11th ed. McGraw-Hill, 1952.