@misc{indiciae177c469c8f5d,
  title = {A comparative analysis of pre-Silurian crustal building blocks of the northern and the southern Appalachian orogen},
  author = {J.P. Hibbard and C.R. van Staal and D.W. Rankin},
  year = {2007},
  doi = {10.2475/01.2007.02},
  url = {https://pubs.usgs.gov/publication/70033151},
  note = {Source identifier: 70033151}
}