APA (7th ed.) Citation

Mencken, H. L. (1945). Happy days: 1880-1892. Knopf.

Chicago Style (17th ed.) Citation

Mencken, Henry L. Happy Days: 1880-1892. New York: Knopf, 1945.

MLA (9th ed.) Citation

Mencken, Henry L. Happy Days: 1880-1892. Knopf, 1945.

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