APA (7th ed.) Citation

Hopkins, W. J., & Williamson, A. C. (2011). The Sandman: His Farm Stories. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hopkins, William J., and Ada Clendenin Williamson. The Sandman: His Farm Stories. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Hopkins, William J., and Ada Clendenin Williamson. The Sandman: His Farm Stories. Project Gutenberg, 2011.

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