Dietz, R. E., & Dietz, F. (1914). 1913, a leaf from the past: Dietz, then and now ; origin of the late Robert Edwin Dietz--his business career, and some interesting facts about New York. New York ; Chicago: R.E. Dietz Company.

Dietz, Robert Edwin, and Fred Dietz. 1913, a Leaf From the Past: Dietz, Then and Now ; Origin of the Late Robert Edwin Dietz--his Business Career, and Some Interesting Facts About New York. New York ; Chicago: R.E. Dietz Company, 1914.

Dietz, Robert Edwin, and Fred Dietz. 1913, a Leaf From the Past: Dietz, Then and Now ; Origin of the Late Robert Edwin Dietz--his Business Career, and Some Interesting Facts About New York. New York ; Chicago: R.E. Dietz Company, 1914.