APA (7th ed.) Citation

Sinclair, B. W. (2006). The Hidden Places. Project Gutenberg.

Chicago Style (17th ed.) Citation

Sinclair, Bertrand W. The Hidden Places. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Sinclair, Bertrand W. The Hidden Places. Project Gutenberg, 2006.

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