@misc{indiciaeca454fff5e1d,
  title = {Manures and fertilizers; a text-book for college students and a work of reference for all interested in the scientific aspects of modern farming — Illustration, Page 68},
  year = {1914},
  url = {https://www.biodiversitylibrary.org/page/29765335},
  note = {Source identifier: page-29765335}
}