TY  - RPRT
TI  - An x-ray diffraction method for semiquantitative mineralogical analysis of chilean nitrate ore
AU  - C. John
AU  - J. George
AU  - E. Ericksen
PY  - 1997
UR  - https://pubs.usgs.gov/publication/70019371
ID  - 70019371
ER  -