000 00327nam a2200133Ia 4500
005 20251122143930.0
008 250113s9999 xx 000 0 und d
041 _aeng
082 _b102473
_aU:1f K5
245 _aPolitical world: Physical world
260 _c1975
_bNat. Geo. Mag.
_aWashington
365 _cRs.
942 _cMA
999 _c7592
_d7592