TY - BOOK AU - Leach, James A, 1950- TI - AutoCAD 2012 instructor : a student guide to complete coverage of AutoCAD's commands and features T2 - The McGraw-Hill graphic series SN - 9780073375465 U1 - 620.00420285536 LEA 2012 PY - 2012/// CY - New York PB - McGraw-Hill KW - AutoCAD KW - Computer graphics KW - Engineering graphics ER -