000 00292nas a22001217a 4500
008 190318s9999 xx 000 0 und d
022 _a0036-8733.
245 _aScientific American
260 _aNew York
260 _bMacmillan Publishers
260 _c2006
906 _aIssue No 4 is Missing
999 _c72117
_d72117