@misc{indiciaec60a4546adf0,
  title = {The windmill: its efficiency and economic use, Part II},
  author = {Edward C. Murphy},
  year = {1901},
  doi = {10.3133/wsp42},
  url = {https://pubs.usgs.gov/publication/wsp42},
  note = {Source identifier: wsp42}
}