000 00355nam a2200133Ia 4500
008 151001s9999||||xx |||||||||||||| ||und||
100 _aRuesell Bernhard
245 4 _aThe Empart of science on
250 _a7
260 _bBlackie & Son Ltd
260 _c1961
300 _a200
365 _b7
999 _c954390
_d954387