Pencoyd Iron Works. (1885). Wrought iron and steel in construction: Convenient rules, formulae, and tables for the strength of wrought iron shapes used as beams, struts, shafts, etc (2d ed., rev. and enl.). J. Wiley.
Lua i Stíl Chicago (17ú heag.)Pencoyd Iron Works. Wrought Iron and Steel in Construction: Convenient Rules, Formulae, and Tables for the Strength of Wrought Iron Shapes Used as Beams, Struts, Shafts, Etc. 2d ed., rev. and enl. New York: J. Wiley, 1885.
Lua MLA (8ú heag.)Pencoyd Iron Works. Wrought Iron and Steel in Construction: Convenient Rules, Formulae, and Tables for the Strength of Wrought Iron Shapes Used as Beams, Struts, Shafts, Etc. 2d ed., rev. and enl. J. Wiley, 1885.
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