@book{1020,
	author = {Leach, James A.,},
	title = {Autocad 2007 instructor :},
	publisher = {McGraw-Hill Companies,},
	year = {c2006.},
	series = {Mcgraw-hill graphics series},
	address = {Dubuque, IA :},
	edition = {1st ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0668/2006928662-d.html}
}