West, John C. Textbook of servomechanisms / John C. West. - London : English university, c 1955. - viii, 238 p. : ill. ; 21 cm. Includes index. Bibliography : p. 231-234. 344 344 Subjects--Topical Terms: Servomechanisms. Subjects--Geographic Terms: Machine engineering. Dewey Class. No.: 621.8 / W52t