APA (7th ed.) Citation

Mencken, H. L., Wright, W. H., Nathan, G. J., & Benton, T. H. (2007). Europe After 8: 15. Project Gutenberg.

Chicago Style (17th ed.) Citation

Mencken, H. L., Willard Huntington Wright, George Jean Nathan, and Thomas Hart Benton. Europe After 8: 15. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Mencken, H. L., et al. Europe After 8: 15. Project Gutenberg, 2007.

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