@misc{indiciaef2606fc2c110,
  title = {The U.S. geological survey rass-statpac system for management and statistical reduction of geochemical data},
  author = {G. VanTrump and A.T. Miesch},
  year = {1977},
  doi = {10.1016/0098-3004(77)90025-5},
  url = {https://pubs.usgs.gov/publication/70009904},
  note = {Source identifier: 70009904}
}