@misc{1191216,
  author = {Lewis V Judson},
  title = {Circular of the Bureau of Standards no. 572::calibration of line standards of length and measuring tapes at the National Bureau of Standards},
  year = {1956},
  month = {1956-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.572},
  language = {en},
}