TY  - RPRT
TI  - Reference samples for use in analytical geochemistry: their availability, preparation, and appropriate use
AU  - J. S. Kane
PY  - 1992
DO  - 10.1016/0375-6742(92)90047-c
UR  - https://pubs.usgs.gov/publication/70017092
ID  - 70017092
ER  -