Pocket Ref Author:Thomas J. Glover This concise reference guide covers Air and gases, computers, electronics, general information, geology, hardware, math, money, steel and metals, surveying and mapping, and weights and measures. Information for do-it-yourselfers, engineers, craftsmen, students, teachers, managers, maintenance and industrial personnel, and travelers. The ultimate... more » problem solver, and the perfect gift for the person who has everything, and it fits in your shirt pocket!« less