@book{6786,
	author = {Head, George O., and Head, Jan Doster.},
	title = {1000 AutoCAD tips and tricks /},
	publisher = {Ventana Press;},
	year = {c1989 [reprinted 1990].},
	address = {Chapel Hill, NC ;},
	edition = {1st ed.},
	note = {Spine title: 1000 AutoCAD tips & tricks.}
}