@book{146094,
	author = {Puerto Rico. and Puerto Rico.},
	title = {Informe económico del Municipio de Ponce por sector industrial principal.},
	publisher = {Oficina de Ordenación Territorial. Area Económica},
	year = {1994-},
	address = {Ponce, P. R.},
	note = {Set made up various editions.}
}