TY  - RPRT
TI  - Computer studies of the composition of Chilean nitrate ores: Data reduction, basic statistics and correlation analysis
AU  - Bernardo F. Grossling
AU  - George Edward Ericksen
PY  - 1971
DO  - 10.3133/ofr71138
UR  - https://pubs.usgs.gov/publication/ofr71138
ID  - ofr71138
ER  -