@book{210021,
	author = {Omura, George.},
	title = {AutoCAD 2008},
	publisher = {Ediciones Anaya Multimedia},
	year = {c2008.},
	address = {Madrid},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/ecip0712/2007009244.html}
}