Rabin, Robert. “Trains Sugar Plantation Centrals and the conservation of our Vieques cultural heritage – Trenes Centrales y la conservación del patrimonio cultural en Vieques.” vieques events Jan. 2011: 28-31. Web. 17 Feb. 2013. <http://www.viequesevents.net/pdf/archives/VE0111.pdf>. Used with permission / Usado con permiso
