Technological innovation in portuguese extractive and manufacturing industries : preliminary findings from the Portuguese Innovation Survey / Fernando Ribeiro, Gabinete de Planeamento e Estatísticas (JNICT)
. - [Lisboa] : JNICT. Gabinete de Planeamento e Estatísticas, 1995
. - 15 f. 30 cm
C.S6.07.09.1/Cx66