TY  - RPRT
TI  - MRDS-DTR; a mineral occurrence database for VAX DATATRIEVE based on the USGS Mineral Resource Data System
AU  - C.N. Gerlitz
PY  - 1987
DO  - 10.3133/ofr87657
UR  - https://pubs.usgs.gov/publication/ofr87657
ID  - ofr87657
ER  -