APA (7th ed.) Citation

James, H. (2010). The diary of a man of fifty. Project Gutenberg.

Chicago Style (17th ed.) Citation

James, Henry. The Diary of a Man of Fifty. To be supplied: Project Gutenberg, 2010.

MLA (8th ed.) Citation

James, Henry. The Diary of a Man of Fifty. Project Gutenberg, 2010.

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