AutoCAD 2020 instructor :  a student guide for in-depth coverage of AutoCAD's commands and features / 
James A..Leach;  Shawna.Lockhart;  Eric Tilleson 
 - Mission, KS :  Sdc Publications,  2019. 
 - xxvi,1227 p.: ill.; 27.5 cm. 
<br/><br/>Includes appendices, index 
<br/><br/><label>ISBN: </label>9781630572570 
<br/><br/><label>Dewey Class. No.: </label>C 620.004 L434 2019