General Library Phone Numbers:
 Main Library
(and Circulation/check out):
909 274 4260
 Library Reference/Information
(does not take voice mail):
 909 274 4289
Associate Dean: 909 274 5659
Dean: 909 274 5659

You can also reach someone for Reference help 24/7 at this link (Ask a Librarian)

Mt. SAC Library strives to make our online resources accessible to everyone. We specifically consider design features that make our web pages accessible to individuals with disabilities, including those using assistive technology for computer access. If you find a library page or database inaccessible to you, please contact Hong Guo at (909) 274-6490 or Mt. SAC Disabled Student Programs & Services (DSP&S) at (909) 274-4290. Last Modified: 11/6/16