| This great little book is a concise all-purpose reference featuring hundreds of tables, maps, formulas, constants & conversions AND it still fits in your shirt pocket! Goes where you go! Pocket Ref
3rd Edition by Thomas J. Glover Over 200 new pages and virtually thousands of updates! Index for information access. This book has been in print since 1989 and is now in its 3rd Edition. It has also gone through numerous printings in each edition. | 
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