Omura, George Mastering AutoCad release 12 for windows / George Omura - San Francisco, CA Sybex 1993 - xxxv, 1155p. : ill. 23cm includes index 1155 ISBN: 782112218 Subjects--Topical Terms: AutoCadAutoCad LC Class. No.: T385 .O483 1993 Dewey Class. No.: T385 .O483 1993 National Library of Medicine Call No.: T385 .O483 1993