@misc{indiciaed036cf81c0e3,
  title = {The elements of electrical engineering; a text book for technical schools and colleges. Vol. I. Direct current machines; electric distribution and lighting — Illustration, Page 189},
  year = {1907},
  url = {https://www.biodiversitylibrary.org/page/17499995},
  note = {Source identifier: page-17499995}
}