APA (7th ed.) Citation

ProQuest (Firm). (1927). Regulation of radio communication. [publisher not identified].

Chicago Style (17th ed.) Citation

ProQuest (Firm). Regulation of Radio Communication. Washington: [publisher not identified], 1927.

MLA (9th ed.) Citation

ProQuest (Firm). Regulation of Radio Communication. [publisher not identified], 1927.

Warning: These citations may not always be 100% accurate.