@misc{indiciae8142fdc48d20,
  title = {The Russian thistle : its introduction and spread in California, with laws and measures for its control, with a description of the Canada and Scotch thistles — Illustration, BHL page 21571359},
  year = {1905},
  url = {https://www.biodiversitylibrary.org/page/21571359},
  note = {Source identifier: page-21571359}
}