@book{173939,
	author = {Niebel, Benjamin W. and García Díaz, Ma. Dolores, tr. },
	title = {Ingeniería industrial : métodos, tiempos y movimientos  /},
	publisher = { Alfaomega,},
	year = {1990},
	address = {México  :},
	edition = {3a ed.},
	note = {Título original: Motion and time study}
}