Hallett, Frederick H., 1909- [from old catalog] Machine shop theory and practice - Toronto, Macmillan [c1961] - 141 p. illus. 23 cm. LCCN: 64057111 Subjects--Topical Terms: Machine-shop practice.--ME LC Class. No.: TJ1160 / .H29 Dewey Class. No.: 670.423 HAL