APA (7th ed.) Citation

Barr, R., Crane, S., & Williams, C. D. (2009). The O'Ruddy: A Romance. Project Gutenberg.

Chicago Style (17th ed.) Citation

Barr, Robert, Stephen Crane, and C. D. Williams. The O'Ruddy: A Romance. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Barr, Robert, et al. The O'Ruddy: A Romance. Project Gutenberg, 2009.

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