APA (7th ed.) Citation

Parker, G. (2004). The Trail of the Sword, Volume 4. Project Gutenberg.

Chicago Style (17th ed.) Citation

Parker, Gilbert. The Trail of the Sword, Volume 4. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Parker, Gilbert. The Trail of the Sword, Volume 4. Project Gutenberg, 2004.

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