@book{852,
	author = {Spencer, Henry Cecil and Dygdon, John Thomas},
	title = {Dibujo técnico /},
	publisher = {Alfaomega,},
	year = {2008},
	address = {México :},
	edition = {8ª edición.},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl/ESCUELADEINGENIERIA/DibujoTecnico/}
}