000 00269nam a2200109Ia 4500
008 230320s9999||||xx |||||||||||||| ||spa||
082 _aR/505/S18/80
100 _aRadvanyi, P. ; Bordry, M.
245 0 _aLa Radiactividad Artifical
260 _bSalvat
942 _880
_cLIB
999 _c23434
_d23434