000 00246nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a5(031)
_bENC
245 0 _aEncyclopedia of nature and science. 20 V
260 _aSydney
_bBay
_c1974
942 _cBK
999 _c31455
_d31455