Maass, J. (1973). The glorious enterprise: The Centennial Exhibition of 1876 and H. J. Schwarzmann, architect-in-chief. [Watkins Glen, N.Y.]: Published for the Institute for the Study of Universal History Through Arts and Artifacts, by the American Life Foundation.

Maass, John. The Glorious Enterprise: The Centennial Exhibition of 1876 and H. J. Schwarzmann, Architect-in-chief. [Watkins Glen, N.Y.]: Published for the Institute for the Study of Universal History Through Arts and Artifacts, by the American Life Foundation, 1973.

Maass, John. The Glorious Enterprise: The Centennial Exhibition of 1876 and H. J. Schwarzmann, Architect-in-chief. [Watkins Glen, N.Y.]: Published for the Institute for the Study of Universal History Through Arts and Artifacts, by the American Life Foundation, 1973.