TY - BOOK AU - Omura, George. TI - Mastering AutoCAD 2012 and AutoCAD LT 2012 : Autodesk official training guide SN - 9780470952887 (pbk.) AV - T385 .O482 2011 T385 .O482 2011 CY - Indianapolis, Ind. PB - Wiley Pub., c ER -