000 00311nam a2200133Ia 4500
008 200208s9999 xx 000 0 und d
082 _a910 NAT
245 0 _aNational geographic: mega structures
260 _bDTS
260 _c2007
500 _aPincky Video
650 _aEducational Cinema
942 _cCD
999 _c154004
_d154004