Appel, J. H. 1. (1930). The business biography of John Wanamaker: Founder and builder : America's merchant pioneer from 1861 to 1922 : with glimpses of Rodman Wanamaker and Thomas B. Wanamaker. New York: Macmillan Co..

Appel, Joseph H. 1873-1949. The Business Biography of John Wanamaker: Founder and Builder : America's Merchant Pioneer From 1861 to 1922 : With Glimpses of Rodman Wanamaker and Thomas B. Wanamaker. New York: Macmillan Co., 1930.

Appel, Joseph H. 1873-1949. The Business Biography of John Wanamaker: Founder and Builder : America's Merchant Pioneer From 1861 to 1922 : With Glimpses of Rodman Wanamaker and Thomas B. Wanamaker. New York: Macmillan Co., 1930.