APA (7th ed.) Citation

Riley, H. (2004). The Mule A Treatise on the Breeding, Training, and Uses to Which He May Be Put. Project Gutenberg.

Chicago Style (17th ed.) Citation

Riley, Harvey. The Mule A Treatise on the Breeding, Training, and Uses to Which He May Be Put. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Riley, Harvey. The Mule A Treatise on the Breeding, Training, and Uses to Which He May Be Put. Project Gutenberg, 2004.

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