TY - BOOK AU - Omura,George TI - Mastering AutoCAD : release 12 for windows SN - 9812143491 U1 - 620.004202855369 OMU PY - 1993/// CY - San Francisco PB - Sybex KW - AutoCAD KW - Computer graphics KW - ME, MIS N1 - Includes index ER -