000 00295nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aNil
245 0 _aBritannica Yearbook of Science and the future
260 _bEncyclopedia Britannica
260 _c1973
365 _b100.00
942 _cBK
999 _c135973
_d135973