Author:William Foster Apthorp
|←Author Index: Ap||William Foster Apthorp
|United States writer, drama and music critic, editor and musician|
- “Apthorp, William Foster,” The New International Encyclopædia. New York: Dodd, Mead and Co., 1905.
- “Apthorp, William Foster,” in The Encyclopedia Americana, New York: The Encyclopedia Americana Corporation (1920)