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2. Names and definitions of the geologic units of California
3. Nanga Parbat = Naked mountain
4. Narrative of the Canadian Red River Exploring Expedition of 1857 : And of the Assinniboine and Saskatchewan Exploring Expedition of 1858. Volume 1
5. Narrative of the Canadian Red River Exploring Expedition of 1857 : And of the Assinniboine and Saskatchewan Exploring Expedition of 1858. Volume 2
6. Narrative of the Canadian Red River Exploring Expedition of 1857 and of the Assinniboine and Saskatchewan Exploring Expedition of 1858
7. Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle between the years 1826 and 1836 : describing their examination of the southern shores of South America and the Beagle's circumnavigation of the globe
8. The National Center of the U.S. Geological Survey
9. National Defense Authorization Act for FY97
10. The national geologic map database : developing a distributed archive of standardized geoscience information for the nation
11. National Geologic Mapping Act of 1991
12. National Geologic Mapping Reauthorization Act of 1996
13. National Geologic Mapping Reauthorization Act of 1997
14. National Geologic Mapping Reauthorization Act of 1999
15. National maps and datasets for research and land planning
16. National Oceanic and Atmospheric Administration hydrographic survey data used in a U.S. Geological Survey regional geologic framework study along the Delmarva Peninsula
17. National Park system new area studies; Threatened Natural Landmarks and Nationally significant historic places
18. The National Petroleum Reserve, Alaska (NPRA) data archive
19. The National Petroleum Reserve in Alaska : earth-science considerations
20. National Seabed Hard Minerals Act of 1988
21. Natural gas in Montana
22. Natural hazards and earth system sciences discussions
23. Natural resources research
24. Natural resources research
25. The naturalist
26. Nature and man in America
27. The Nature and timing of orogenic activity in the Caledonian and Hercynian rocks of the British Isles
28. Nature, origin, and significance of the Tully limestone : an anomalous unit in the Catskill Delta, Devonian of New York
29. Nature's surprise!
30. Naturgeschichte des Mineralreichs : Lehrbuch für öffentliche Vorträge, besonders auch in Gymnasien und Realschulen, so wie zum Selbststudium
31. Die Naturgeschichte und Bergwercksverfassung des Ober-Hartzes
32. Nauki o zemle
Науки о земле