TEXTOS PARA LA HISTORIOGRAFIA LINGUISTICA DE PUERTO RICO: LA LABOR DE ZACARIAS VALL ESPINOSA (1886 Y 1887)/Texts for the Historiography Linguistic of Puerto Rico: The Work of Zacarias Vall Espinosa (1886 and
TEXTOS PARA LA HISTORIOGRAFIA LINGUISTICA DE PUERTO RICO: LA LABOR DE ZACARIAS VALL ESPINOSA (1886 Y 1887)/Texts for the Historiography Linguistic of Puerto Rico: The Work of Zacarias Vall Espinosa (1886 and