@misc{1170376,
  author = {E T Pierce and M A McPherson and G L Howett},
  title = {Emergency vehicle warning devices::interim review of the state-of-the-art relative to performance standards},
  year = {1971},
  month = {1971-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.10478},
  language = {en},
}