TY - GEN AU - Shand, William A AU - Treado, Marshall J C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.480-13 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Police Communications equipment survey of 1976: ER -