APA (7th ed.) Citation

Hornung, E. W. (2007). The Amateur Cracksman. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hornung, E. W. The Amateur Cracksman. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Hornung, E. W. The Amateur Cracksman. Project Gutenberg, 2007.

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