APA (7th ed.) Citation

Edrich, G. (2010). Out of the Earth. Project Gutenberg.

Chicago Style (17th ed.) Citation

Edrich, George. Out of the Earth. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Edrich, George. Out of the Earth. Project Gutenberg, 2010.

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