000			00393nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aILLUSTRATED ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY
245			_aHow it works. Vol.17
260			_aNew York
260			_bMarshall Cavendish
260			_c1977
300			_a2229-2368 p.
942			_cBooks
999			_c11446 _d11446