APA (7th ed.) Citation

Forster, E. M. (2001). The Longest Journey. Project Gutenberg.

Chicago Style (17th ed.) Citation

Forster, E. M. The Longest Journey. Project Gutenberg, 2001.

MLA (9th ed.) Citation

Forster, E. M. The Longest Journey. Project Gutenberg, 2001.

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