TY  - RPRT
TI  - Results of the U. S. Geological Survey's analytical evaluation program for standard reference samples distributed in October 2000
AU  - B.F. Connor
AU  - J.P. Currier
AU  - M.T. Woodworth
PY  - 2001
DO  - 10.3133/ofr01137
UR  - https://pubs.usgs.gov/publication/ofr01137
ID  - ofr01137
ER  -