James L. Kirtley Electric Power Priciples - 2nd - John wiley & sons, INC - C1 . https://docs.google.com/spreadsheets/d/1xd8JApdT8D7frbT57A7JsPuR0Jhg761JqSioRg4jqQ4/edit?gid=0#gid=0 ISBN: 9781119585176 Dewey Class. No.: Cir.621.3/Kir63e