TY  - RPRT
TI  - Chemical composition of phosphorites of the Phosphoria Formation
AU  - R. A. Gulbrandsen
PY  - 1966
DO  - 10.1016/0016-7037(66)90131-1
UR  - https://pubs.usgs.gov/publication/70010041
ID  - 70010041
ER  -