APA (7th ed.) Citation

Coe, D. (1943). Marconi, pioneer of radio. J. Messner, inc..

Chicago Style (17th ed.) Citation

Coe, Douglas. Marconi, Pioneer of Radio. New York: J. Messner, inc., 1943.

MLA (9th ed.) Citation

Coe, Douglas. Marconi, Pioneer of Radio. J. Messner, inc., 1943.