@misc{1172811,
  author = {B Leonard Bean and John R Dise},
  title = {Causes of variation in chemical analyses and physical tests of Portland cement:},
  year = {1961},
  month = {1961-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.MONO.28},
  language = {en},
}