APA (7th ed.) Citation

Reade, C. (2004). A Perilous Secret. Project Gutenberg.

Chicago Style (17th ed.) Citation

Reade, Charles. A Perilous Secret. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Reade, Charles. A Perilous Secret. Project Gutenberg, 2004.

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