APA (7th ed.) Citation

Westerman, P. F., & Wigfull, W. E. (2011). The Wireless Officer. Project Gutenberg.

Chicago Style (17th ed.) Citation

Westerman, Percy F., and W. E. Wigfull. The Wireless Officer. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Westerman, Percy F., and W. E. Wigfull. The Wireless Officer. Project Gutenberg, 2011.

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