APA (7th ed.) Citation

Alger, H. (2007). Five Hundred Dollars or, Jacob Marlowe's Secret. Project Gutenberg.

Chicago Style (17th ed.) Citation

Alger, Horatio. Five Hundred Dollars or, Jacob Marlowe's Secret. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Alger, Horatio. Five Hundred Dollars or, Jacob Marlowe's Secret. Project Gutenberg, 2007.

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