@misc{1166716,
  author = {George Dickson},
  title = {Measurement of the color of dental silicate cements::progress report},
  year = {1959},
  month = {1959-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.6506},
  language = {en},
}