Williams-Whitmer, Brittingham - Pennsylvania State University 1995
http://pubs.cas.psu.edu/FreePubs/pdfs/uh081.pdf

A great resource from Bat Conservation International including appropriate exclusion methods and visual how-tos.

A single page that gives good information on bat-proofing your home.

A list of tips for successful habitation with plans to build your own or resources to purchase.

A page that illustrates many of the places that bats can roost or enter your house and how to seal it up.

For Teachers Students Doing Research Report Resources Bats Out of Your House

-Contra Costa County Office of Education