APA (7th ed.) Citation

BANGAY, R. D. (1914). The elementary Principles of Wireless Telegraphy. The Marconi Press Agency.

Chicago Style (17th ed.) Citation

BANGAY, R. D. The Elementary Principles of Wireless Telegraphy. London: The Marconi Press Agency, 1914.

MLA (9th ed.) Citation

BANGAY, R. D. The Elementary Principles of Wireless Telegraphy. The Marconi Press Agency, 1914.

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