If you already have the call number for a book, you can enter it in the Online Catalog to search for the record; be sure to keep the "All Fields" limiter, and pay attention to the library location.
To find a book on the shelves, you can use the call number as an "address." Remember that the books are arranged by the call number alphabetically, then numerically.
For a guide to Library of Congress Classification, click here.
To locate what area of the general collection in Mitchell will have your book, click here for the floor plan.