@misc{indiciae967d077848c0,
  title = {Devonian rocks and Lower and Middle Devonian pelecypods of Guangxi, China, and the Traverse Group of Michigan},
  year = {1986},
  doi = {10.3133/pp1394ag},
  url = {https://pubs.usgs.gov/publication/pp1394AG},
  note = {Source identifier: pp1394AG}
}