Land Tenure Development in Puerto Rico.Arquivado em 2006-09-13 no Wayback Machine Cathy Bryan. Department of Spatial Information Science and Engineering. University of Maine. Orono, Maine. ca. 2000. Old Town, Maine: James W. Sewall Company. Page 5. Retrieved 14 July 2012.
Del mito al hito: la defensa de los taínos. Héctor L. Sánchez. La Perla del Sur. Ponce, Puerto Rico. 26 December 2012. (Title in printed version: "Del mito al hito: Conozca la brave defensa de los tainos." Year 31. Issue 1517. Page 28.) Retrieved 26 December 2012.
Land Tenure Development in Puerto Rico.Arquivado em 2006-09-13 no Wayback Machine Cathy Bryan. Department of Spatial Information Science and Engineering. University of Maine. Orono, Maine. ca. 2000. Old Town, Maine: James W. Sewall Company. Page 5. Retrieved 14 July 2012.