Libro 5,587 Documento de Gobierno 290 Procedimiento de la Conferencia 200 Electrónico 95 Seriadas 85 Tesis 77 Desconocido 63 Revista 24 Manuscrito 3 Fotografía 3 Material de referencia 2 Conjunto 1 ver todos ...

T - Tecnología 5,780

United States Federal Highway Administration 115 American Association of State Highway and Transportation Officials 60 California Department of Transportation 34 National Research Council (U.S.) Transportation Research Board 34 United States Bureau of Public Roads 33 Kleinlogel, Adolf, 1877-1958 32 History of Science Collection (Brown University) 30 Steinman, D. B (David Barnard), 1886-1960 29 United States Congress. Senate. Committee on Commerce 28 Port of New York Authority 27 Duan, Lian 25 Institution of Civil Engineers (Great Britain) 25 Kinne, W. S (William Spaulding) 25 ebrary, Inc 25 United States Army. Corps of Engineers 24 Chen, Wai-Fah, 1936- 23 Morison, George Shattuck, 1842-1903 23 Durst, Seymour B., 1913-1995 22 Turner-Fairbank Highway Research Center 22 United States Federal Highway Administration. Offices of Research and Development 22 New York (N.Y.) Department of Bridges 21 American Association of State Highway Officials 20 Delaware River Port Authority 20 United States Congress. House. Committee on Interstate and Foreign Commerce 20 Howe, Malverd A (Malverd Abijah), 1863- 18 Merriman, Mansfield, 1848-1925 18 National Cooperative Highway Research Program 18 Du Bois, A. Jay (Augustus Jay), 1849-1915 17 Highway Innovative Technology Evaluation Center (U.S.) 17 Society of Photo-optical Instrumentation Engineers 17 ver todos ...

English 4,357 German 553 French 351 Chinese 172 Italian 113 Spanish 104 Russian 90 Japanese 43 Dutch 33 Portuguese 27 Czech 26 Polish 26 Greek 20 Turkish 20 Indonesian 12 Hungarian 10 Korean 10 Danish 9 Swedish 9 Croatian 7 Undetermined 7 Vietnamese 7 Bosnian 5 Multiple 5 Romanian 4 Ukrainian 4 Bulgarian 3 Persian 3 Bengali 2 Finnish 2 ver todos ...

History 381 Pictorial works 230 Congresses 229 Electronic books 194 Conference papers and proceedings 183 Specifications 96 Periodicals 74 Illustrated works 58 Handbooks, manuals, etc 57 Biography 41 Handbooks and manuals 36 Tables 35 Exhibitions 31 Biographies 26 Early works to 1800 25 Academic theses 21 Ouvrages illustrés 20 Juvenile literature 19 Catalogs 18 Printed ephemera 18 Congrès 16 Designs and plans 16 Guidebooks 16 Tables (Data) 16 Exhibition catalogs 15 Thèses et écrits académiques 15 Early works 13 Technical reports 10 Academic Dissertation 9 Guides et manuels 9 ver todos ...

20th century 56 19th century 39 1872-1940 19 1806-1869 14 1900-1999 14 1800-1899 11 Early works to 1800 11 1951- 9 21st century 9 1837-1926 8 18th century 8 1900 - 1999 8 17th century 7 1843-1903 6 Geschichte 6 1800 - 1899 5 1820-1887 5 2000-2099 5 1832-1923 4 1879 4 19e siècle 4 1806-1859 3 1865-1898 3 1879-1965 3 1886-1960 3 1905-2000 3 1927- 3 1929- 3 1934- 3 1937- 3 ver todos ...

United States 320 New York (State) 236 New York 165 China 160 California 156 France 150 Brooklyn Bridge (New York, N.Y.) 104 Germany 89 Pennsylvania 86 New Jersey 83 Italy 77 New York (N.Y.) 56 England 55 Philadelphia 48 Spain 46 Brooklyn Bridge 45 San Francisco 44 Switzerland 44 Golden Gate Bridge (San Francisco, Calif.) 43 Japan 43 Massachusetts 43 Hudson River (N.Y. and N.J.) 41 San Francisco-Oakland Bay Bridge (Oakland and San Francisco, Calif.) 41 Great Britain 40 Missouri 35 Netherlands 32 Scotland 29 Mississippi River 28 Saint Louis 28 San Francisco Bay 28 ver todos ...