000 00310nam a2200109Ia 4500
008 171211s9999 xx 000 0 und d
245 _aPerpetual Motion; An Ancient Mystery Solved?
245 _cJohn Collins
260 _c2012
650 _xBiography
856 _uhttp://down.ebook777.com/059/9781411676367.pdf
999 _c349967
_d349967