Wallach, Paul. Drafting / Paul Wallach. - Encino, Calif. : Glencoe Pub. Co., c1981. - vi, 648 p. : ill. ; 25 cm. Includes index. english ISBN: 0028296001 LCCN: 80084394 Subjects--Topical Terms: Mechanical drawing. LC Class. No.: T353 / .W237 1981 Dewey Class. No.: 604.24/WAD