Reulens, C., & McMurtrie, D. C. 1. (1941). Proposal in 1855 for a typographic council to meet in Brussels to determine the facts regarding the invention of printing. Chicago: Chicago Club of Printing House Craftsmen, Committee on Invention of Printing.

Reulens, Charles., and Douglas C. 1888-1944 McMurtrie. Proposal in 1855 for a Typographic Council to Meet in Brussels to Determine the Facts Regarding the Invention of Printing. Chicago: Chicago Club of Printing House Craftsmen, Committee on Invention of Printing, 1941.

Reulens, Charles., and Douglas C. 1888-1944 McMurtrie. Proposal in 1855 for a Typographic Council to Meet in Brussels to Determine the Facts Regarding the Invention of Printing. Chicago: Chicago Club of Printing House Craftsmen, Committee on Invention of Printing, 1941.