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Mike Holt's Illustrated Guide to Understanding the National Electrical Code, Vol. 1 (workbook), 2017 NEC
Mike Holt's Illustrated Guide to Understanding the National Electrical Code Vol 1 2017 NEC - workbook Author:Mike Holt This workbook printed in full color contains more than 1,400 NEC Practice questions in Code order that follow the Understanding the NEC Volume 1 textbook along with two random order final exams. Direct from Mike Holt Enterprises, Answer Key included.