@misc{1172081,
  author = {George N Thompson and Ann E Rapuzzi},
  title = {Directory of commercial and college laboratories/:},
  year = {1947},
  month = {1947-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.MP.187},
  language = {en},
}