TY  - RPRT
TI  - Analyses of rocks, with a chapter on analytical methods, laboratory of the United States Geological survey 1880 to 1896
AU  - Frank Wigglesworth Clarke
AU  - W. F. Hillebrand
PY  - 1897
DO  - 10.3133/b148
UR  - https://pubs.usgs.gov/publication/b148
ID  - b148
ER  -