APA (7th ed.) Citation

Rider, J. F. (1940). FM: An introduction to frequency modulation. J. F. Rider publisher, inc..

Chicago Style (17th ed.) Citation

Rider, John F. FM: An Introduction to Frequency Modulation. New York city: J. F. Rider publisher, inc., 1940.

MLA (9th ed.) Citation

Rider, John F. FM: An Introduction to Frequency Modulation. J. F. Rider publisher, inc., 1940.