APA (7th ed.) Citation

Burnham, M. (2010). The Girl Aviators and the Phantom Airship. Project Gutenberg.

Chicago Style (17th ed.) Citation

Burnham, Margaret. The Girl Aviators and the Phantom Airship. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Burnham, Margaret. The Girl Aviators and the Phantom Airship. Project Gutenberg, 2010.

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