@misc{1189966,
  author = {P Klaus and E Bunten},
  title = {LEAA police equipment survey of 1972 volume III ::sirens and emergency warning lights},
  year = {1973},
  month = {1973-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.73-212},
  language = {en},
}