APA (7th ed.) Citation

O'Connor, J. L. (2010). History of the Kentucky Derby, 1875-1921. Project Gutenberg.

Chicago Style (17th ed.) Citation

O'Connor, John Lawrence. History of the Kentucky Derby, 1875-1921. Project Gutenberg, 2010.

MLA (9th ed.) Citation

O'Connor, John Lawrence. History of the Kentucky Derby, 1875-1921. Project Gutenberg, 2010.

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