APA (7th ed.) Citation

Fenn, G. M., & Piffard, H. (2008). The Peril Finders. Project Gutenberg.

Chicago Style (17th ed.) Citation

Fenn, George Manville, and Harold Piffard. The Peril Finders. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Fenn, George Manville, and Harold Piffard. The Peril Finders. Project Gutenberg, 2008.

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