Timbie, William H. 1877- Principles of electrical engineering / by William H. Timbie [and] Vannevar Bush, assisted by George B. Hoadley. - 4th ed. - New York : Wiley, 1951 [printing 1963]. - ix, 629 p. : ill. ; 22 cm. Includes bibliographical reference and index. Subjects--Topical Terms: Electrical engineering. Dewey Class. No.: 621.3 / TIP 1963