Electricity And Controls For Hvac-R by Stephen L Herman

Practical Problems In Mathematics for Electricians by Stephen L. Herman

Electronics for Electricians by Stephen L Herman

Delmar's Standard Textbook Of Electricity - by Herman

Industrial Electricity and Motor Controls by Rex Miller and Mark E. Miller

Delmar's Standard Textbook of Electricity by Stephen Herman

Electricity and Basic Electronics by Stephen R. Matt (2012, Trade Paperback)