These books, along with other titles, can be found in the Reference section of the Library. Click on the cover to view the book in Amazon. Click on the title to go to the record in the Library Online Catalog. Be sure to check the Circulating collection for books you can check out, too.
These databases will be useful to you in your research:
Here are some websites that will help as you research various aspects of marketing and public relations.
Here are some marketing/public relations associations and organizations that may be of interest to you: