| 000 | 00409 a2200133 4500 | ||
|---|---|---|---|
| 008 | 141010b2011 xxu||||| |||| 00| 0 eng d | ||
| 022 | _a15413357 | ||
| 245 |
_aOn thin ice / _cMcGrath, Susan |
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| 260 | _cJuly 2011, | ||
| 300 | _app. 64-75, | ||
| 440 |
_aNATIONAL GEOGRAPHIC _vVol. 220, No. 1, |
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| 650 | _aPOLAR BEARS: SURVIVAL | ||
| 856 | _uhttp://ngm.nationalgeographic.com/2011/07/polar-bears/mcgrath-text | ||
| 999 |
_c17675 _d17675 |
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