@misc{1187096,
  author = {Paul E Pontius and James R Whetstone and John A Simpson},
  title = {The National Measurement System for mass, volume and density:},
  year = {1978},
  month = {1978-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.75-928},
  language = {en},
}