@book{2855,
	author = {JENSEN, CECIL. and HELSEL, JAY D.},
	title = {ENGINEERING DRAWING AND DESIGN/ },
	publisher = {MACMILLAN / MACGRAW-HILL},
	year = {1990},
	address = {NEW YORK: },
	edition = {4},
	note = {INCLUYE INDICE.}
}