APA (7th ed.) Citation

Dickens, C. (1998). Three Ghost Stories. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dickens, Charles. Three Ghost Stories. Project Gutenberg, 1998.

MLA (9th ed.) Citation

Dickens, Charles. Three Ghost Stories. Project Gutenberg, 1998.

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