TY - RPRT TI - Relationship between physical condition of the carbonate fraction and sediment environments: Northern Puerto Rico shelf AU - O. H. Pilkey AU - E.I. Fierman AU - James V. A. Trumbull PY - 1979 DO - 10.1016/0037-0738(79)90074-5 UR - https://pubs.usgs.gov/publication/70012414 ID - 70012414 ER -