@misc{indiciae015d785e22c6,
  title = {Butter, its analysis and adulterations; specially treating on the detection and determination of foreign fats — Illustration, BHL page 37733152},
  year = {1877},
  url = {https://www.biodiversitylibrary.org/page/37733152},
  note = {Source identifier: page-37733152}
}