@misc{1171821,
  author = {Joan E Hartman},
  title = {Directory of United States standardization activities (supersedes MP230)/:},
  year = {1967},
  month = {1967-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.MP.288},
  language = {en},
}