Technologic Papers of the Bureau of Standards - Influence of Phosphorus Upon the Micro-Structure Structure and Hardness of Low-Carbon, Open-Hearth Steels, November 21, 1921 #252674 5,85€
The Call of the Dark Continent - A Study in Missionary Progress, Opportunity and Urgency #252630 9,85€
The Smith's Pocket Companion, Containing Useful Information and Tables on Iron and Steel, for the Use of Smiths and Steel Workers #223384 6,85€
