APA (7th ed.) Citation

Birmingham, G. A. (2006). The Simpkins Plot. Project Gutenberg.

Chicago Style (17th ed.) Citation

Birmingham, George A. The Simpkins Plot. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Birmingham, George A. The Simpkins Plot. Project Gutenberg, 2006.

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