Ask the Library: Reference

There could be a few of reasons why you are having trouble:

1. The book is already checked out by someone else.  You could check the catalog and it should tell you if the book is checked out or over due.
2. Someone put the book back on the shelf in the wrong places.  Check the surrounding books, it might be nearby.
3. Someone else currently has the book somewhere else in the Library
4. Sometimes,in a collection this size, items just go missing :(