Boxall, Victor Edward. Drawings and materials : a textbook for engineering technicians : SI units / V.E. Boxall. - 2nd ed. - London : Edward Arnold, 1975. - [6], 245 p. : ill(some col), 1map ; 25 cm/ + pbk/ Includes index. ISBN: 0713133201 Subjects--Topical Terms: Engineering drawings.Mechanical drawing. Dewey Class. No.: 604.2