@book{16621,
	author = {Hamad, Munir M.},
	title = {AutoCAD 2008 Essentials},
	publisher = {Infinity Science Press,},
	year = {c2008},
	address = {Hingham, MA :},
	note = {Title from title screen.},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio6828079}
}