000			00297nam a2200121Ia 4500
100			_aNational geographic Magazine
942			_cBV
654			_a
245			_aNational geographic Magazine
260			_aUSA _bNational Geographic Society _c2005
082			_a910.5
300			_aVol.207 No.1-4 ,2005
999			_c382515 _d382515
041			_aeng