000 00274nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a5+6(031)
_bMCG
245 0 _aMcGraw Hill encyclopedia of science and technology. 16 V
260 _aNew York
_bMcGraw Hill
_c1960
942 _cBK
999 _c20351
_d20351