圖書 2,514 Government Document 518 序列 359 Conference Proceeding 106 雜誌 82 Thesis 30 未知 20 電子 18 Book Chapter 3 工具包 2 地圖 1 實物 1 Reference Material 1 查看所有 ...

United States Federal Highway Administration 300 Adam Matthew Digital (Firm) 258 Foreign Office 258 American Association of State Highway and Transportation Officials 164 National Research Council (U.S.) Transportation Research Board 153 United States Bureau of Public Roads 109 National Cooperative Highway Research Program 108 National Research Council (U.S.) Highway Research Board 61 United States Public Roads Administration 40 California Division of Highways 35 United States Congress. House. Committee on Roads 27 United States Department of Agriculture 21 United States Department of Transportation 18 Michigan State Highway Department 17 Ohio Department of Highways 17 American Association of State Highway Officials 16 Asian Development Bank 16 National Highway Institute (U.S.) 16 Smiles, Samuel, 1812-1904 16 United States General Accounting Office 16 United States Congress. Senate. Committee on Post Offices and Post Roads 15 California Highway Commission 14 Davis, Charles Henry, 1865- 14 National Highways Association 14 Massachusetts Department of Public Works 13 California Department of Transportation 12 National Research Council (U.S.) Transportation Research Board. Annual Meeting 12 Turner-Fairbank Highway Research Center 12 United States 12 Virginia Department of Highways 11 查看所有 ...

English 2,668 Spanish 90 German 66 French 52 Russian 34 Chinese 32 Italian 17 Portuguese 17 Indonesian 11 Finnish 9 Dutch 6 Japanese 6 Polish 6 Turkish 6 Korean 5 Hebrew 4 Swedish 4 Norwegian 3 Slovenian 3 Vietnamese 3 Arabic 2 Icelandic 2 Undetermined 2 Afrikaans 1 Albanian 1 Bulgarian 1 Burmese 1 Central Khmer 1 Greek 1 Latin 1 查看所有 ...

Periodicals 286 Congresses 131 History 119 Conference papers and proceedings 108 Specifications 80 Pictorial works 45 Handbooks, manuals, etc 43 Technical reports 43 Statistics 34 Handbooks and manuals 26 Early works to 1800 25 Electronic books 20 Biography 19 Exhibitions 18 Exhibition catalogs 16 Biographies 14 Illustrated works 14 Broadsides 12 Early works 12 Documentary films 11 Legislative hearings 10 Maps 10 Nonfiction films 10 Case studies 8 Internet resource 8 Sources 8 Abstracts 7 Exhibition, pictorial works 7 Genealogy 7 Academic theses 6 查看所有 ...

Ottoman Empire, 1288-1918 84 20th century 23 19th century 14 17th century 12 1900-1999 12 Early works to 1800 8 1757-1834 7 1756-1836 5 1800-1899 5 1814-1883 4 18th century 4 1923- 4 1956- 4 Commonwealth and Protectorate, 1649-1660 4 1893-1975 3 1937- 3 1540-1810 2 1600-1699 2 1800-1999 2 1808-1875 2 1819-1901 2 1865-1950 2 1901-1953 2 1945- 2 1961- 2 20e siècle 2 20th Century 2 21st century 2 Charles II, 1660-1685 2 Colonial period, ca. 1600-1775 2 查看所有 ...