TY  - RPRT
TI  - Relation of the "topography" of the Hawthorn formation to size of phosphate particles in the deposits, and to topography, in the northern part of the land-pebble phosphate field, Florida
AU  - David Francis Davidson
PY  - 1952
DO  - 10.3133/tem337
UR  - https://pubs.usgs.gov/publication/tem337
ID  - tem337
ER  -