por Van Valkenburgh, Nooger & Neville [autor] | Ruiz de Aquino, Joel [traductor] | Ramos Watanabe, Jorge [traductor].
por Levin, Richard I [autor] | Kirkpatrick, Charles A [autor] | Sanchez Palma, Jose Rosendo [traductor] | Levin, Richard I. Quantitative approaches to management.