APA (7th ed.) Citation

Trollope, A. (2010). An old man's love. Project Gutenberg.

Chicago Style (17th ed.) Citation

Trollope, Anthony. An Old Man's Love. To be supplied: Project Gutenberg, 2010.

MLA (8th ed.) Citation

Trollope, Anthony. An Old Man's Love. Project Gutenberg, 2010.

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