01258nam a22003377a 4500999001900000001001000019003000400029005001700033008003900050035001900089040002300108049003500131086001700166092001800183100002300201245010200224260004100326300007700367336002700444337002800471338002700499490004100526500011100567504006200678650003300740651003000773700002100803710004000824830004400864942001200908  c257626d257626000973310OSt20170222083017.0820428s1957   dcuab   b   f001 0 eng d  a(OCoLC)8376435  aIADbengcIADdAGL  aBiblioteca Encarnacion Valdez 0 al 19.31042-l  a| 19.3:1042-|1 qGuillou, Robert B.  aA reconnaissance study of the beach sands of Puerto Rico /cRobert B. Guillou and Jewell J. Glass  aWashington,[D.C.]bU.S. G.P.O.c1957  aiv, 273-305 pages:billustrations, map ;c24 cm +e1 folded map in case.  2rdacontentatextbtext  2rdamediaaunmediatedbn  2rdacarrieraVolumebnc1 aGeological Survey bulletin ;v1042-|  a"Prepared in cooperation with the Economic Development Administration of the Commonwealth of Puerto Rico."  aIncludes Bibliographical references (page 303) and index. 09101964aGeologyzPuerto Rico 02fast9294023aPuerto Rico1 qGlass, Jewell J.1 bEconomic Development Administration  9182287aU.S. Geological Survey bulletin  2ddcc17