@book{259468,
	author = {Puig, Juan Carlos and Rodríguez, José M.},
	title = {Ground water resources of the Caguas-Juncos valley, Puerto Rico },
	note = {Shipping list no.:93-0311-P.},
	url = {http://catalog.gpo.gov/fddir/locate.jsp?ItemNumber=0624-B&SYS=000393360}
}