Pritchard, R. T. Workshop processes: for mechanical, engineering technicans / Pritchard, R. T. - London ; The English language book society, c1963. - xv, 214 pages : illustrations ; 22 cm Includes index. English LCCN: 2014034244 Subjects--Topical Terms: Machine-shop practice. LC Class. No.: TJ1160 / .B52 2015 Dewey Class. No.: 670/PRW