Below is a sampling of books on your subject area. All titles link to the NNU Library Catalog for more information about the book. You can also use this access point to check availability or place a hold on any title that is not in the reference collection.
See the Beyond NNU -- Interlibrary Loan tab for more information on requesting books from other libraries.
We always communicate with NNU students via their NNU email address. Volume of students does not allow us to use other emails. Plan ahead--books are shipped through the U.S. mail and you need to plan accordingly.