APA (7th ed.) Citation

Mencken, H. L. (1940). Happy days: 1880-1892. K. Paul, Trench, Trubner.

Chicago Style (17th ed.) Citation

Mencken, Henry L. Happy Days: 1880-1892. London: K. Paul, Trench, Trubner, 1940.

MLA (9th ed.) Citation

Mencken, Henry L. Happy Days: 1880-1892. K. Paul, Trench, Trubner, 1940.

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