por Kaufmann, Jerome E [autor] | Schwitters, Karen [autor] | Campos Olguín, Víctor [traductor] | Gómez Pourroy, Valeria [traductor] | Kaufmann, Jerome E. Elementary algebra | Kaufmann, Jerome E. Algebra for college students.
por Lamb, Charles W [autor] | Lamb, Charles W. Marketing | Hair, Joseph F [autor] | McDaniel, Carl D [autor] | Gómez Pourroy, Valeria [traductor] | Camacho Arias, Clayna [colaborador] | Esteva Armida, Eduardo [colaborador].