(1916). Addresses and proceedings at the celebration of fortieth anniversary of incorporation and corner stone laying ceremony, Chamber of Commerce Building, 1876-1916. July 8th, 1916. [Pittsburgh: Art Engraving and Printing Co..

Addresses and Proceedings At the Celebration of Fortieth Anniversary of Incorporation and Corner Stone Laying Ceremony, Chamber of Commerce Building, 1876-1916. July 8th, 1916. [Pittsburgh: Art Engraving and Printing Co., 1916.

Addresses and Proceedings At the Celebration of Fortieth Anniversary of Incorporation and Corner Stone Laying Ceremony, Chamber of Commerce Building, 1876-1916. July 8th, 1916. [Pittsburgh: Art Engraving and Printing Co., 1916.