APA (7th ed.) Citation

London, J. (2010). The iron heel. Project Gutenberg.

Chicago Style (17th ed.) Citation

London, Jack. The Iron Heel. To be supplied: Project Gutenberg, 2010.

MLA (8th ed.) Citation

London, Jack. The Iron Heel. Project Gutenberg, 2010.

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