Keljik, Jeff Electricity 3: power generation and delivery/ Jeff Keljik. - 8th ed. - Australia: Cengage Learning, c2008. - 254 p.: ill.; 25 cm. Includes index ISBN: 978-981-424-611-8 Subjects--Topical Terms: Electric machinery--Direct current. Dewey Class. No.: GC 621.31 K29 2008