@book{1927,
	author = {Dinkel, John J.; Kochenberger, Gary A.; Plane, Donald R.},
	title = {Administracion Cientifica   },
	publisher = {Reprentaciones y servicios de Ingeniería, S.A.},
	year = {1980},
	address = {E.U.A},
	edition = {1a}
}