APA (7th ed.) Citation

Cushing, C. P. (2008). If You Don't Write Fiction. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cushing, Charles Phelps. If You Don't Write Fiction. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Cushing, Charles Phelps. If You Don't Write Fiction. Project Gutenberg, 2008.

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