TY - RPRT TI - LEAA police equipment survey of 1972 volume II : communications equipment and supplies AU - Mumford, S AU - Klaus, P AU - Bunten, E AU - Cunitz, R PY - 1973 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 73-211 DO - 10.6028/NBS.IR.73-211 ER -