TY  - RPRT
TI  - Concretionary manganese-iron oxides in streams and their usefulness as a sample medium for geochemical prospecting
AU  - G.A. Nowlan
PY  - 1976
DO  - 10.1016/0375-6742(76)90014-5
UR  - https://pubs.usgs.gov/publication/70010886
ID  - 70010886
ER  -