@misc{indiciae00c4d50b63cf,
  title = {Review of the grizzly and big brown bears of North America (genus Ursus), with description of a new genus, Vetularctos},
  author = {Clinton Hart Merriam},
  year = {1918},
  url = {https://pubs.usgs.gov/publication/naf41},
  note = {Source identifier: naf41}
}