@misc{1163176,
  author = {Thomas W Mears and John Hague},
  title = {Standard Reference Materials ::Sources of information/},
  year = {1965},
  month = {1965-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-4},
  language = {en},
}