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• HathiTrust Digital Library.
  
  A digital repository for the nation's great research libraries that brings together the immense collections of its partner institutions. It was initially conceived as a collaboration of the thirteen universities of the Committee on Institutional Cooperation, the University of California system, and the University of Virginia to establish a repository for those universities to archive and share their digitized collections, and quickly expanded to include additional partners with fast growing treasure of digitized collections. ... []
  HathiTrust Frequently Asked Questions
  
• LandScan global population databases
  
  Provides data on geographical distribution of global population at one-kilometer resolution over an average 24 hour period. LandScan population distribution models are tailored to match the data conditions and geographical nature of each individual country and region. The database is a useful application in research, educational, humanitarian and corporate settings. ... []

Formats:

• Data, statistics and survey results (1)
• Electronic books and texts (1)

Research tools:

• Catalogs (1)