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Swimming Pool Installation Workbook & DVD by Tom Henry

Troubleshooting Electrical Circuits Workbook by Tom Henry

The United States Electrical Regulations

The Electrician's Workbook by Tom Henry

The Grounding Workbook

Electrical Theory Workbook by Tom Henry

Dictionary for the Electrician with Formulas

Control Circuits Workbook by Tom Henry

Transformer Exam Calculations Workbook

2014 Calculations for the Electrical Exam

2017 Calculations for the Electrical Exam

2020 Calculations for the Electrical Exam