When you are finished with items from Mankato, they can be taken to the Library at St. Paul College, where you can ask them to return the items for you to Minnesota State University, Mankato. All paperwork needs to be returned with the item. Missing paperwork will delay check-in of the item.
Many Minnesota Libraries will do a courtesy book return using the Minitex Courier system. That means they will send it back to MSU for you. You should ask your local Library for details. Community colleges or academic colleges are usually a good place to ask as well.
If you intend to return the items yourself, you can mail the items to:
Interlibrary Loan
Minnesota State University, Mankato
PO Box 8419
Mankato, MN 56002-8419