TY  - RPRT
TI  - Clay mineralogy of sediments from the Rio Cibuco system and the adjacent rivers and insular shelf of north-central Puerto Rico
AU  - Lawrence J. Poppe
AU  - Judith A. Commeau
AU  - Gretchen Luepke
PY  - 1991
DO  - 10.3133/ofr91628
UR  - https://pubs.usgs.gov/publication/ofr91628
ID  - ofr91628
ER  -