01142nam a2200229Ia 4500001000700000003000500007005001700012008004100029035002000070040001300090100003500103245025800138260010800396300003300504490005800537504004900595650005800644650004700702650005600749710006900805710003800874210934BIBL20200624062621.0970710s1997    pr ab    b   f000 0 eng d  a(OCoLC)37270709  aGIScGIS2 aRamos-Ginés, Orlando.2Local10aWater balance and quantification of total phosphorus and total nitrogen loads entering and leaving the Lago de Cidra, Central Puerto Ricocby Orlando Ramos-Ginés ; prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority ... [et al.].  aSan Juan, P.R.bU.S. Geological SurveyaDenver, CObBranch of Information Services [distributor]c1997.  av, 28 p.bill., mapsc28 cm. 0aWater resources investigations reportv96-42222Local  aIncludes bibliographical references (p. 28). 0aWaterxPhosphorus contentzPuerto RicozCidra.2Local 0aEutrophicationzPuerto RicozCidra.2Local 0aWaterxNitrogen contentzPuerto RicozCidra.2Local2 aAutoridad de Acueductos y Alcantarillados de Puerto Rico.2Local  aGeological Survey (U.S.)  2Local