TY  - RPRT
TI  - The Rio Abajo, Pitahaya, and Daguao formations in eastern Puerto Rico
AU  - John W. M’Gonigle
PY  - 1977
DO  - 10.3133/b1435b
UR  - https://pubs.usgs.gov/publication/b1435B
ID  - b1435B
ER  -