000 00338nam a2200121Ia 4500
001 MPKV057364
008 120911s9999 xx 000 0 und d
082 _a500
245 _aScientific American Vol 238-239
_c;
246 _aScientific American Vol 238-239
260 _aNew York
_bScientific American Inc.
_c1978
650 _aPure Sciences
999 _c55357
_d55357