@misc{indiciaed209f4d7f144,
  title = {Rare earths, thorium, and other minor elements in sphene from some plutonic rocks in west-central Alaska},
  author = {Mortimer H. Staatz and Nancy M. Conklin and Isabelle K. Brownfield},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/70164404},
  note = {Source identifier: 70164404}
}