ORTON, D. Neil Notes for draughtsmen : a practical manual for students / D. Neil ORTON - London: Macdonald, ©1971 - v, 122 pages : illustrations ; 24 cm Includes bibliographical references and index. ISBN: 356034097 (Hbk) Subjects--Topical Terms: Mechanical drawing Dewey Class. No.: 604.24 / ORT