@book{47994,
	author = {Vasconcelos, Rubén.},
	title = {Los factores ergonómicos del trabajo},
	publisher = {ARMO,},
	year = {1971-19},
	series = {Col. Ergonomía},
	address = {México, D.F. :},
	note = {La bibliotec tiene: v.1 Factor Humano}
}