APA (7th ed.) Citation

Allen, G. (2003). The British Barbarians. Project Gutenberg.

Chicago Style (17th ed.) Citation

Allen, Grant. The British Barbarians. Project Gutenberg, 2003.

MLA (9th ed.) Citation

Allen, Grant. The British Barbarians. Project Gutenberg, 2003.

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