APA (7th ed.) Citation

Gillmore, I. H. (2011). Out of the Air. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gillmore, Inez Haynes. Out of the Air. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Gillmore, Inez Haynes. Out of the Air. Project Gutenberg, 2011.

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