The world's largest bibliographic database presents bibliographic records for books, serials (journals), and all other formats. Use WorldCat to find materials not in University Libraries or Prospector.
Google has worked with many major universities such as Stanford, Princeton, the University of Michigan and Oxford University to scan their out-of-print and current books.
A unified catalog of many Colorado libraries. Books held by the libraries can be requested via Prospector and are delivered to the Main Library Lending Desk in 3 to 5 days.