APA (7th ed.) Citation

Mencken, H. L. (1942). A new dictionary of quotations on historical principles from ancient and modern sources. A. A. Knopf.

Chicago Style (17th ed.) Citation

Mencken, H. L. A New Dictionary of Quotations on Historical Principles from Ancient and Modern Sources. New York: A. A. Knopf, 1942.

MLA (9th ed.) Citation

Mencken, H. L. A New Dictionary of Quotations on Historical Principles from Ancient and Modern Sources. A. A. Knopf, 1942.