000 00281pam a2200097a 44500
082 _aTR
_bNBS-236
100 _a
245 1 _aNBS frequency and time broadcast services
_bradio stations WWV,WWVH,WWVB, and WWVL
260 _a
_b
_c
997 _aTR4188 C TR4192 C TR4193 C TR4189 C
999 _c405097
_d405097