TY  - RPRT
TI  - USGS rock standards; III, Manganese-nodule reference samples USGS-Nod-A-1 and USGS-Nod-P-1
AU  - F.J. Flanagan
AU  - David Gottfried
PY  - 1980
DO  - 10.3133/pp1155
UR  - https://pubs.usgs.gov/publication/pp1155
ID  - pp1155
ER  -