000 00807nam a2200241 a 4500
008 170703s1970####wauad||f#|||||00| 0#eng#d
003 AR-SmCIES
022 _a0083-209X
024 8 _aNCRP-REPORT-35
041 7 _aen
_2ISO 639-1
091 _a22383D
245 1 0 _aDental X-ray protection.
260 _aWashington :
_bNCRP,
_c1970.
300 _avi, 50 p. :
_btabla, diagr.
490 1 _aReport, no.<35>
500 _aRecommendations of the NCRP
500 _aApéndices y bibliografía: p.24-39
810 2 _aEstados Unidos. National council on radiation protection and measurements
830 _aReport, no.<35>
999 _c23821
_d23821