APA (7th ed.) Citation

Warner, C. D., & Twain, M. (2004). The Gilded Age, Part 6. Project Gutenberg.

Chicago Style (17th ed.) Citation

Warner, Charles Dudley, and Mark Twain. The Gilded Age, Part 6. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Warner, Charles Dudley, and Mark Twain. The Gilded Age, Part 6. Project Gutenberg, 2004.

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