01229cam a2200301Ia 450000500170000000800410001703500160005804000280007404300120010207400110011408600220012510000180014724502170016526001430038230000370052533600080056233700160057033800190058650000360060550400490064170000190069070000300070971000290073971000610076865000310082965000380086065000290089820191202105214.0991112s1999    pr ab    b   f000 0 eng d  aocm42816275  aGPOcGPOdPBRbspaerda  anwpr---  a0624-B0 aI 19.42/4:98-41891 aAtkins, J. B.10aAnalysis of flow durations for selected streams in Puerto Rico through 1994 /cby James B. Atkins, Francisco Pérez-Blair, and James L. Pearman ; in cooperation with the Puerto Rico Aqueduct and Sewer Authority.  aSan Juan, P.R. :bU.S. Dept. of the Interior, U.S. Geological Survey ;aDenver, CO :bBranch of Information Services [distributor],c1999.  av, 32 p. :bill., maps ;c28 cm.  btxt  2rdamediabn  2rdacarrierbnc  aShipping list no.: 2000-0019-P.  aIncludes bibliographical references (p. 18).1 aPearman, J. L.2 aPérez-Blair, Francisco.2 aGeological Survey (U.S.)2 aAutoridad de Acueductos y Alcantarillados de Puerto Rico 0aWater-supplyzPuerto Rico. 0aStream measurementszPuerto Rico. 0aStreamflowzPuerto Rico.