If you already know what book you want then you should use the Book Finder
The Center for Research Libraries (CRL) is a consortium of North American universities, colleges, and independent research libraries. The consortium acquires and preserves newspapers, journals, documents, archives, and other traditional and digital resources for research and teaching and makes them available to member institutions through interlibrary loan and electronic delivery. [more]
From the center of MU Libraries Gateway page, choose the tab, Books & More.
You may only request items owned by other MERLIN or MOBIUS libraries when:
If MERLIN or MOBIUS does not have the book or article you are looking for, then you can request a copy through Interlibrary Loan. Access the ILL form by using your username and password.
For more information, visit the Ebooks guide.