00609nam a2200169Ia 4500 132733 BIBL 20160527192327.0 931022s1988||||pr ab ||||||||||1||eng|d Guzmán Ríos, Senén Local 231966 Hydrology and water quality of the principal springs in Puerto Rico by Senén Guzmán-Ríos. San Juan, P.R. Geological Survey 1988. v, 30 p. ill., maps. Water quality Puerto Rico Measurement. Local 187430 Springs Puerto Rico. Local 173514 Puerto Rico Water. Local 155382 112140 112140 0 0 0 628_161000000000000_G993H 0 ci 172805 10 10 B 2016-05-27 201496 0 628.161 G993h 80000001559221 2016-05-27 00:00:00 r:132733 z:NCC:D 6