@misc{1190596,
  author = {Ralph W Smith},
  title = {Testing of measuring equipment: a manual for weights and measures officials:},
  year = {1951},
  month = {1951-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.HB.45},
  language = {en},
}