Stevenson University Library does have a copy of the Diagnostic and Statistical Manual of Mental Disorders: DSM-5, but it is a reference book and must be used in the library. It can be found in the Zaffere Library. The call number is REF RC455.2.C4 D536 2013.
We also have access to the DSM-5 online. Log in with your SU single-sign on username and password.