APA (7th ed.) Citation

Jefferies, R. (2004). The Open Air. Project Gutenberg.

Chicago Style (17th ed.) Citation

Jefferies, Richard. The Open Air. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Jefferies, Richard. The Open Air. Project Gutenberg, 2004.

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