Timings R. L. 1927-, R. L. Mechanical engineering craft theory and related subjects / R.L. Timings and O. Alabi. - London : New York Longman, 1983-1984. - 2 v. ill 19 x 25 cm. - Longman industrial crafts series . Includes indexes ISBN: 0582658012 Subjects--Topical Terms: Mechanical engineering. Dewey Class. No.: 621