OneSearch combines print books and ebooks in one "Content Type" in your limiting options. If you want to find just print books at UNR, select the "Book/Ebook" content type facet. Then limit by the library location. Your results list will then show only physical books in the library location selected.
Here is an example of how this works. Let's say that you are searching for a book about PHP scripting language. In OneSearch, the majority of books in the results list for this search will be ebooks. To find just print books about PHP scripting language:
(Hint: To find the most computer science books at UNR, you will want to choose "Knowledge Center" and "DeLaMare Library.")
See this "live" example of the search above, PHP scripting language.