TY  - RPRT
TI  - Collection, preparation and testing of NIST hard rock mine waste reference material SRM 2780
AU  - S. A. Wilson
AU  - Paul H. Briggs
AU  - Z. A. Brown
AU  - J.E. Taggart
AU  - R. J. Knight
PY  - 1999
DO  - 10.3133/ofr99370
UR  - https://pubs.usgs.gov/publication/ofr99370
ID  - ofr99370
ER  -