TY  - RPRT
TI  - Trace elements reconnaissance in Indiana, Illinois, Missouri, Arkansas, and Kentucky : preliminary report
AU  - John Marshall Nelson
AU  - Edward V. Stratton
PY  - 1949
DO  - 10.3133/tei34
UR  - https://pubs.usgs.gov/publication/tei34
ID  - tei34
ER  -