If you know the title of the book you are looking for, you can type it into the search bar on the library home page, and it should bring up a list of books. Once you find the one that you are looking for, you can click on the record, and the call number should appear on the page. We do use the Library of Congress call system here, which is a little different than the Dewey Decimal system, but same idea! Here is a picture of what the page will look like: http://unomaha.worldcat.org/oclc/537308872 Where it says 'Call Number' in the little table is going to be what you are looking for.
I hope this helps! If you have any other questions, please let us know!
