TY  - RPRT
TI  - Maps showing characteristics of the Escollo de Arenas sand and gravel deposit, Vieques Island, Puerto Rico
AU  - R. W. Rodriguez
AU  - Juan L. Trias
PY  - 1989
DO  - 10.3133/mf2108
UR  - https://pubs.usgs.gov/publication/mf2108
ID  - mf2108
ER  -