Davis, Sidney A. Electromechanical components for servomechanisms [by] Sidney A. Davis [and] Byron K. Ledgerwood. - New York, McGraw-Hill, 1961. - 338 p. illus. 24 cm. Includes bibliography. LCCN: 61009116 Subjects--Topical Terms: Mechanical engineering--ME LC Class. No.: TJ214 / .D28 Dewey Class. No.: 629.83