TY  - RPRT
TI  - Method descriptions and bibliography of routine work performed by the Branch of Geochemistry analytical laboratories, U.S. Geological Survey
AU  - M. W. Doughten
AU  - J. N. Grossman
PY  - 1993
DO  - 10.3133/ofr931b
UR  - https://pubs.usgs.gov/publication/ofr931B
ID  - ofr931B
ER  -