000 00330nam a2200121Ia 4500
008 130521s9999 xx 000 0 und d
020 _a671621300
100 _a"Helleman's , Alexander"
245 4 _aThe Timetables of science :
260 _aNew York :
650 _aSCIENCE- HISTORY -CHRONOLOGY -TABLES
700 _a"Bunch, Bryan"
999 _c14897
_d14897