Indicadores de actividades cientificas y tecnologicas : Mexico 1997 = Science and technology indicators : at a glance, Mexico 1997 Science and technology indicators : at a glance, Mexico 1997 - ed. de bolsillo - 88 páginas Subjects--Topical Terms: Ciencia--Mexico--EstadisticaTecnología--Mexico--Estadistica LC Class. No.: Q127.M4 / I53 1997