Databases A to Z: U
| 1 2 A B C D E F G H I J K L M N O P R S T U V W X Z |
= USC users only 
= Multiple sources | U.S. Congressional Serial Set
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| Readex | 1817-1980 |  | ||
| U.S. Gazetteer
searchable database containing geographic information, maps and 1990 census data | ||||
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| ULI Development Case Studies (formerly Project Reference File)
Feature project reports produced by the Urban Land Institute. | |||
| 1985 to the present | | |||
| Ulrich's Periodicals Directory
Provides users with essential serials bibliographic and access information that ranges from subscription rates to the latest web sites updated monthly. | |||
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| Ultimate Civil Engineering Directory
Links to over 1,000 online resources of interest to civil engineers | ||||
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| UMI Dissertation Service
Search for and order dissertations from UMI | ||||
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| UNBISnet (United Nations Bibliographic Information System)
Catalog of UN publications and documentation indexed by the United Nations Dag Hammarskjöld Library and the Library of the UN Office at Geneva | ||||
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| Union Lists of Periodicals
Holdings for journals and other covered items among OCLC member libraries. | |||
| current | | |||
| United Nations Official Documents System
Full text of UN parliamentary documents and official records. | ||||
| 1992 to present | | |||
| Universal Database of Russian Social Sciences and Humanities Journals
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| UpToDate
Comprehensive, current, succinct evidence-based resource covering multiple medical specialties. Onsite access only. | |||
| UpToDate | | |||
| Urban Studies Abstracts
Publishes cross-indexed abstracts of important recent literature (plus related citations) on all aspects of urban studies. | |||
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| USC Current Health Sciences Research Grants
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| USC Scholars Portal
The USC Scholars Portal enables users to simultaneously cross-search multiple resources | |||
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| USPTO Issued Patents
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| 1976-present | | |||
