APA (7th ed.) Citation

Gibson, R. A. (1924). Radio broadcasting in Argentina. [publisher not identified].

Chicago Style (17th ed.) Citation

Gibson, Raleigh A. Radio Broadcasting in Argentina. Washington, D.C.: [publisher not identified], 1924.

MLA (9th ed.) Citation

Gibson, Raleigh A. Radio Broadcasting in Argentina. [publisher not identified], 1924.