APA (7th ed.) Citation

Browne, H., & Summers, L. (2010). Mars Confidential. Project Gutenberg.

Chicago Style (17th ed.) Citation

Browne, Howard, and Leo Summers. Mars Confidential. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Browne, Howard, and Leo Summers. Mars Confidential. Project Gutenberg, 2010.

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