TY  - RPRT
TI  - Rapid analysis of silicate, carbonate, and phosphate rocks
AU  - Leonard Shapiro
AU  - Walter Wallace Brannock
PY  - 1962
DO  - 10.3133/b1144a
UR  - https://pubs.usgs.gov/publication/b1144A
ID  - b1144A
ER  -