TY - GEN AU - P Klaus AU - E Bunten C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.73-212 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - LEAA police equipment survey of 1972 volume III ::sirens and emergency warning lights ER -