By Thomas J. Glover 768 pages of tables, maps, formulas, constants and conversions and it fits right in your shirt pocket! Every engineer, geologist, manager, foreman, contractor, purchasing agent, maintenance person, craftsman, handyman, student and traveler needs this book! Everything you need to know - right in your pocket. Included: Automotive Carpentry & Construction Electronics & Electrical First Aid Glues & Solvents Mine & Mill Weights Properties of Materials Chemistry & Physics State & World Wide Area Codes Rope & Chain Weather Geology Science Math Over 3500 Conversion Factors Much, much more. Softcover - 3-1/4" x 5-1/2" x 1/2". Availability: Usually ships the same business day Pocket Reference Reference - 4th Edition SQ35903-D$10.95 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.