@misc{indiciae1b4b591b9fb4,
  title = {Sampling designs for geochemical surveys: syllabus for a short course},
  author = {A.T. Miesch},
  year = {1976},
  doi = {10.3133/ofr76772},
  url = {https://pubs.usgs.gov/publication/ofr76772},
  note = {Source identifier: ofr76772}
}