000 00239nam a22001097a 4500
082 _a539.7 EFR'N
100 _aEFRON, ALEXANDER
_974990
245 _aNUCLEAR ENERGY
260 _aNEWYORK
_bJOHN F.RIDER
_c1958
300 _a63P
942 _cBK
999 _c580489
_d580489