APA (7th ed.) Citation

Ferguson, J. L. (2005). Arkansas Governors and United States Senators. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ferguson, John L. Arkansas Governors and United States Senators. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Ferguson, John L. Arkansas Governors and United States Senators. Project Gutenberg, 2005.

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