The reference collection has a limited collection in respect to homelessness. You may be best suited to search for books in the main collection of the library. One book, however, does address homelessness as part of a larger topic.
Encyclopedia of victimology and crime prevention
Editors: Bonnie S. Fisher & Steven P. Lab
Published: 2010
ISBN: 1412960479
Call number: REF. HV6250.3.U5 E55 2010