000 00277nam a2200109Ia 4500
008 250224s9999 xx 000 0 und d
020 _a70797986
082 _aREF503MCG
245 0 _aEncyclopedia of Science and Technology Vol 8
260 _bMcGraw Hill
_c1960
942 _cRBK
999 _c431163
_d431163