Polar icebreakers in a changing world [electronic resource] : an assessment of U.S. needs / Committee on the Assessment of U.S. Coast Guard Polar Icebreaker Roles and Future Needs, Polar Research Board, Division on Earth and Life Studies; Marine Board, Transportation Research Board, National Research Council of the National Academies.
محفوظ في:
| منشور في: |
Washington, DC :
National Academies Press,
c2007.
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| الوصول للمادة أونلاين: | |
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| التنسيق: | الكتروني كتاب الكتروني |
