Cyclopedia of drawing : a practical reference work on mechanical and architectural drawing, including blueprint reading machine drawing and design, structural drafting, perspective and freehand drawing, pen and ink rendering, topographic drafting, sheet-metal pattern work, etc. - Kenison, Ervin; Holst, H. V. Von; Bourne, Frank A. (Chicago, Illinois : American Technical Society, 1920)
Keywords: Dibujo técnico