000 00843nam a2200265 a 4500
008 170703s1975####wauad||f#|||||00| 0#eng#d
003 AR-SmCIES
020 _a0913392278
022 _a0083209X
024 8 _aNCRP-REPORT-45
041 7 _aen
_2ISO 639-1
091 _a24769
245 1 0 _aNatural background radiation in the United States.
260 _aWashington :
_bNCRP,
_c1975.
300 _axi, 163 p. :
_btabla, diagr.
490 1 _aReport, no.<45>
500 _aRecommendations of the NCRP
500 _aApéndices y bibliografía: p.112-150
650 4 _aRADIACIONES -EXPOSICION
650 4 _aRADIACTIVIDAD NATURAL
810 2 _aEstados Unidos. National council on radiation protection and measurements
830 _aReport, no.<45>
999 _c23830
_d23830