APA (7th ed.) Citation

Chesterton, G. K. (2010). The Ballad of St. Barbara, and Other Verses. Project Gutenberg.

Chicago Style (17th ed.) Citation

Chesterton, G. K. The Ballad of St. Barbara, and Other Verses. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Chesterton, G. K. The Ballad of St. Barbara, and Other Verses. Project Gutenberg, 2010.

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