@misc{1191941,
  author = {Herbert B Brooks},
  title = {Circular of the Bureau of Standards no. 408::information for the amateur designer of transformers for 25- to 60-cycle circuits},
  year = {1935},
  month = {1935-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.408},
  language = {en},
}