- Triangulation short-cut layouts : a textbook and working guide with practical and modern methods for laying out and forming patterns used for blower-exhaust systems, heating and air conditioning. Math
- Short Cuts for Round Layouts: A Textbook and Working Guide with Practical and Modern Methods for Laying out and Forming Patterns for Round and Oblong Fittings, T's Elbows, and Hoods
- Air Conditioning Metal Layout:: A textbook and working guide...
- Short cuts for round layouts;: A textbook and working guide, with practical and modern methods for laying out and forming patterns for round and ... formulas applies to sheet-metal work
- Triangulation short-cut layouts;: A textbook and working quide with practical and modern methods for laying out and forming patterns used for ... formulas applied to sheet-metal work








