Umans, Stephen D. Fitzgerald & Kingsley's electric machinery / Stephen D. Umans - 7th ed. - New York : McGraw-Hill, c2014. - xiii, 706 p. : ill. ; 24 cm. ISBN: 9780071326469 LCCN: Subjects--Topical Terms: Electric machinery LC Class. No.: TK2181 / .F5 2014