APA (7th ed.) Citation

Aycock, R. D. (2008). Control Group. Project Gutenberg.

Chicago Style (17th ed.) Citation

Aycock, Roger D. Control Group. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Aycock, Roger D. Control Group. Project Gutenberg, 2008.

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