If you are unsure of the location of a specific work use the Book Location guide that is available on the library web site.
In the example below we have a book with the Location and call number of Main Library Stacks BL1152.7 .H56 2017.

The library book location guide tells us that books with call numbers beginning with and including letters between AC and ZA are located on the 4th floor of the south tower, Main Library:
