000 00297nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
245 0 _aIllustrated encyclopedia of science and Technology (Howit works) Vol. 20
260 _bMarshall Carendish
260 _c1977
365 _b850.00
942 _cBK
999 _c201972
_d201972