www.library.cmu.edu/borrow#request-from-other-libraries
If you need access to materials that CMU does not own, you may be able to request materials from other institutions using the following services:
Both services require you to use your Andrew ID and password to log in (for E-ZBorrow, you can also log in using your 9-digit CMU ID number). You will be notified by email when your materials are ready for pick up.