Puerto Rico. Servicio de Riego de la Costa Sur. (1912). [Topographic maps of part of the southern coast of Puerto Rico]. Porto Rico Irrigation Service.
Chicago Style (17th ed.) CitationPuerto Rico. Servicio de Riego de la Costa Sur. [Topographic Maps of Part of the Southern Coast of Puerto Rico]. Guayama, P.R.: Porto Rico Irrigation Service, 1912.
MLA (8th ed.) CitationPuerto Rico. Servicio de Riego de la Costa Sur. [Topographic Maps of Part of the Southern Coast of Puerto Rico]. Porto Rico Irrigation Service, 1912.
Warning: These citations may not always be 100% accurate.