Title: Sheet metal practice and pattern development
First published: 1984
Description: A book for students of the sheet metal trade, and a reference for practitioners.  The 3rd edition is mainly in SI units currently in use in Canada.
Book is divided into four parts.  
Part 1: materials, tools and operations
Part 2: Heating and Air Conditioning
Part 3: Projects
Part 4: Pattern Development (includes over 80 examples)
Subjects: Pattern development, HVAC, Shop safety, sheet metal