@misc{indiciaed6436a5a3a72,
  title = {Electrical engineering problems. Part I. Direct current circuits and apparatus. Part II. Alternating current circuits and apparatus — Illustration, BHL page 17495920},
  year = {1914},
  url = {https://www.biodiversitylibrary.org/page/17495920},
  note = {Source identifier: page-17495920}
}