@book{153008,
	author = {McGuinness, C. L. and Autoridad de Acueductos y Alcantarillados de Puerto Rico.},
	title = {Ground-water resources of Puerto Rico},
	publisher = {Puerto Rico Aqueduct and Sewer Service},
	year = {[1948?]},
	address = {[San Juan?]},
	note = {"Prepared in cooperation with the Geological Survey, U.S. Department of the Interior."}
}