TY  - RPRT
TI  - Preliminary report on the bedded manganese of the Lake Mead region, Nevada and Arizona
AU  - V.E. McKelvey
AU  - J. H. Wiese
AU  - V. H. Johnson
PY  - 1949
DO  - 10.3133/b948d
UR  - https://pubs.usgs.gov/publication/b948D
ID  - b948D
ER  -