Anexo ao Boletim mensal de estatística /
Instituto Nacional de Estatística, Serviços Centrais.

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Item Link Original Source
Limited (search only)   1980-83 University of California
Limited (search only)   1984:7 University of California
Limited (search only)   1984-87 University of California
Limited (search only)   1988-89 University of California
Limited (search only)   1990:2-4 University of California
Limited (search only)   1990:9-10 University of California