por Voris, William [autor] | Rovira Sánchez, José [traductor] | Voris, William. Production control.
por Immer, John R [autor] | Hevia Cangas, Fernando [traductor] | Immer, John R. Materials handling.
por Parker, Willard Eagleson, 1900 [autor] | Kleemeier, Robert Watson, 1915.