If you find a source that you really need that is only available in print, or the databases don't have an online copy available, you can order it through Interlibrary Loan (ILL). The University Libraries partners with libraries all over the country to provide access to their materials for students. To set up your Interlibrary Loan account, check out their website.
UofM Owned Book or Article - Order through ILL; it will be mailed or emailed to you
Article or Book Chapter Not Owned by UofM - Order through ILL; it will be mailed or emailed to you
Book Not Owned by UofM - Unfortunately, you can't get these through ILL at UofM at this time. However, you can try contacting libraries near where you live to see if they have the item or if they can order it through their ILL program. If you live near the Lambuth campus, you can list the Lambuth campus library as your address and order these items through ILL at the Lambuth campus. An alternative to ordering a whole book is to just order a chapter or two from it. To figure out which chapters you want, try accessing the table of contents via Google books or Amazon's preview option.
For Frequently Asked Questions about Interlibrary Loan, check out their FAQs page.