Book 15,406 Government Document 10,291 Map 1,800 Serial 925 Electronic 681 Conference Proceeding 391 Journal 277 Unknown 23 Reference Material 12 Photo 9 Thesis 7 Audio 6 Book Chapter 3 Article 2 Musical Score 1 Newspaper 1 see all ...

H - Social Science 1,938 G - Geography, Anthropology, Recreation 1,517 S - Agriculture 1,221 Q - Science 1,090 T - Technology 831 A - General Works 699 F - General American History 460 D - World History 395 E - United States History 267 N - Fine Arts 249 R - Medicine 178 P - Language and Literature 158 C - Historical Sciences 153 K - Law 128 L - Education 120 J - Political Science 98 Z - Library Science 88 B - Philosophy, Psychology, Religion 78 M - Music 36 U - Military Science 17 V - Naval Science 4 see all ...

United States Forest Service. Pacific Northwest Region 1,493 United States Forest Service. Southwestern Region 916 United States Forest Service. Southern Region 826 United States Forest Service. Intermountain Region 801 United States Minerals Management Service. Gulf of Mexico OCS Region 529 United States Forest Service. Rocky Mountain Region 369 United States Forest Service. Eastern Region 340 Geometronics Service Center (U.S.) 309 United States Forest Service. Alaska Region 288 United States Forest Service. Pacific Southwest Region 275 Northeast Fisheries Science Center (U.S.) 241 Canadian Science Advisory Secretariat 234 United States Minerals Management Service. Alaska OCS Region 228 U.S. Fish and Wildlife Service Region 1 218 United States Forest Service. Northern Region 213 United States Forest Service 157 United States Environmental Protection Agency. Region X. 120 United States Environmental Protection Agency. Region V 115 United States Environmental Protection Agency. Region V. 114 U.S. Fish and Wildlife Service Region 7 109 Geological Survey (U.S.) 107 U.S. Fish and Wildlife Service Region 4 105 United States National Park Service. Rocky Mountain Regional Office 104 Coastal Marine Institute (Baton Rouge, La.) 101 United States Agricultural Research Service. Southern Region 86 World Bank 83 World Bank Europe and Central Asia Region. Poverty Reduction and Economic Management Unit 79 World Health Organization Regional Office for the Western Pacific 79 United States Agricultural Research Service 76 United States Environmental Protection Agency. Region VIII 76 see all ...

English 16,313 French 1,132 Spanish 609 Polish 174 Russian 101 German 87 Chinese 20 Italian 14 Arabic 12 Hindi 12 Indonesian 12 Yoruba 12 Lithuanian 9 Mayan 9 Czech 8 Japanese 7 Kashubian 6 Latin 6 Multiple 6 Vietnamese 6 Central Khmer 5 Quechua 5 Armenian 4 Central American Indian 4 Norwegian 4 Turkish 4 Yupik 4 Catalan 3 Portuguese 3 Slovak 3 see all ...

Maps 1,798 Periodicals 718 History 508 Congresses 467 Statistics 332 Conference papers and proceedings 293 Government publications 196 Topographic maps 163 Handbooks, manuals, etc 155 Bibliography 139 Exhibitions 123 Directories 112 Biography 105 Internet resource 101 Pictorial works 83 Guidebooks 74 Exhibition catalogs 73 Environmental impact statements 72 Tourist maps 69 Electronic books 62 Catalogs 61 Thematic maps 60 Case studies 53 Handbooks and manuals 52 Biographies 50 Econometric models 47 Identification 45 Bibliographies 44 Sources 44 Road maps 39 see all ...

20th century 140 19th century 56 1900-1999 52 21st century 40 1939-1945 25 18th century 22 1800-1899 20 1960- 18 Civil War, 1861-1865 18 1900 - 1999 17 17th century 16 2000-2099 16 Revolution, 1789-1799 16 1991- 15 1989- 13 1945- 12 1858-1919 11 1800 - 1899 10 1800-1999 10 1848-1907 9 1986- 9 1990- 8 1994- 8 Civil War, 1936-1939 8 16th century 7 1707-1783 7 1809-1865 7 Since 1960 7 Since 1989 7 Since 1991 7 see all ...

United States 1,948 Oregon 871 Alaska 771 California 698 Washington (State) 564 Arizona 557 New Mexico 547 Mexico, Gulf of 510 Idaho 420 France 367 Utah 260 Colorado 258 Northwest, Pacific 203 Texas 202 Wyoming 199 Tongass National Forest 197 Gulf of Mexico 178 Mexico 168 Philippines 153 West (U.S.) 147 North Carolina 146 Tongass National Forest (Alaska) 146 New York (State) 143 Southwestern States 138 Florida 135 Montana 134 India 131 Southern States 129 Louisiana 120 British Columbia 119 see all ...