Rodríguez Gracia, Luis Adolfo Requerimiento arqueológico (Fase 1A-1B) Campo de Golf municipal Barrio Vallas, Ponce, P.R. Luis A. Rodríguez Gracia. - Ponce, P.R. Historic-Archaeological Researchers and Related Services 1988. - 75 p. ill., graphs, maps, ports. Bibliography : p. 49-50. LCCN: aa 28000876 Subjects--Topical Terms: Excavations (Archaeology)--Puerto Rico--Ponce. Subjects--Geographic Terms: Archaeology--Research--Puerto Rico--Ponce.Archaeology--Puerto Rico--Ponce.