APA (7th ed.) Citation

Wheeler, J. M., & Foote, G. W. (2012). Voltaire: A Sketch of his Life and Works. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wheeler, J. M., and G. W. Foote. Voltaire: A Sketch of His Life and Works. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Wheeler, J. M., and G. W. Foote. Voltaire: A Sketch of His Life and Works. Project Gutenberg, 2012.

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