Eckman, Donald P. Principles of industrial process control / Donald P. Eckman - New York ; London : J. Wiley & sons, inc.; Chapman & Hall, limited, c1945. - x, 237 p. : ill. ; 22 cm. Includes index. Subjects--Topical Terms: Automatic control. Dewey Class. No.: 660.284 / ECP 1945