Peña Obregón, Ángela, and Alein García Rivas. “System of Fortifications Holguín-Gibara: The Battery Prim and the Fort Nº 7 of the Tannery”. Arcada. Revista de conservación del patrimonio cultural 4, no. 2 (November 18, 2016): 17-30. Accessed November 28, 2019. https://revistas.reduc.edu.cu/index.php/arcada/article/view/202.