| 000 | nam a22 7a 4500 | ||
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| 999 |
_c7223 _d7223 |
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| 003 | OSt | ||
| 005 | 20180520102459.0 | ||
| 008 | 180519b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cNARA | ||
| 100 |
_916026 _aNational Geographic Society |
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| 245 | _aNational Geographic, Vol.219, No.6 (2011) | ||
| 260 |
_aWashington, _bNational Geographic Society, _c2011 June, |
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| 300 |
_a145p. _c25cm. |
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| 440 |
_916027 _aNational Geographic _n; Vol.219, No.6 |
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| 942 |
_cJNL _2ddc |
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