@misc{indiciaefe5b3087a1e7,
  title = {Cassiterite in gold placers at Humboldt Creek, Serpentine-Kougarok area, Seward Peninsula, Alaska},
  author = {C.L. Sainsbury and Reuben Kachadoorain and T. E. Smith and W. C. Todd},
  year = {1968},
  doi = {10.3133/cir565},
  url = {https://pubs.usgs.gov/publication/cir565},
  note = {Source identifier: cir565}
}