@misc{1160991,
  author = {J L Eldreth and E D Bunten and P A Klaus},
  title = {LEAA police equipment survey of 1972, volume IV ::alarms, security equipment, surveillance equipment},
  year = {1977},
  month = {1977-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.480-4},
  language = {en},
}