Gardner Bender Ugly's Electrical References Revised 2017 Edition is a helpful guide for the professional electrician and electrical minded weekend warrior. The book includes common mathematical formulas and specific rules and regulations from the National Electric Code. The easy-to-understand format makes it an ideal resource for double checking commonly used equations. Keep on hand as a quick reference for on-the-job applications.
Ugly's Electrical References - A quick, on-the-job reference guide for the most commonly required information in an easy-to-read format. By George V. Hart