Book 2,509 Government Document 518 Serial 359 Conference Proceeding 106 Journal 82 Thesis 30 Unknown 20 Electronic 18 Book Chapter 3 Kit 2 Map 1 Physical Object 1 Reference Material 1 see all ...

United States Federal Highway Administration 298 Adam Matthew Digital (Firm) 258 Foreign Office 258 American Association of State Highway and Transportation Officials 162 National Research Council (U.S.) Transportation Research Board 153 United States Bureau of Public Roads 109 National Cooperative Highway Research Program 107 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 American Association of State Highway Officials 17 Michigan State Highway Department 17 Ohio Department of Highways 17 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 National Research Council (U.S.) Highway Research Board. Annual Meeting 11 see all ...

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Periodicals 286 Congresses 131 History 120 Conference papers and proceedings 108 Specifications 80 Pictorial works 45 Handbooks, manuals, etc 43 Technical reports 43 Statistics 34 Handbooks and manuals 27 Early works to 1800 25 Electronic books 21 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 see all ...

Ottoman Empire, 1288-1918 84 20th century 22 19th century 13 1900-1999 12 17th century 11 Early works to 1800 8 1757-1834 7 1756-1836 5 1800-1899 5 1814-1883 4 1923- 4 1956- 4 Commonwealth and Protectorate, 1649-1660 4 1893-1975 3 18th century 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 see all ...