APA (7th ed.) Citation

Barbour, R. H., & Caswell, E. C. (2008). Left Guard Gilbert. Project Gutenberg.

Chicago Style (17th ed.) Citation

Barbour, Ralph Henry, and Edward C. Caswell. Left Guard Gilbert. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Barbour, Ralph Henry, and Edward C. Caswell. Left Guard Gilbert. Project Gutenberg, 2008.

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