@misc{indiciae6dd11c0fd1c3,
  title = {Harnessing the earthworm; a practical inquiry into soil-building, soil-conditioning and plant nutrition through the action of earthworms — Illustration, BHL page 41247000},
  year = {1948},
  url = {https://www.biodiversitylibrary.org/page/41247000},
  note = {Source identifier: page-41247000}
}