What do Southrons think of Florence King's Southern Ladies & Gentlemen (Google Books)? There's also Confessions of a Failed Southern Lady.
Some other books from Amazon:
Tea & Etiquette (Revised): Taking Tea for Business and Pleasure (Capital Lifestyles)
The Amy Vanderbilt Complete Book of Etiquette (find an earlier edition?)
Suck Your Stomach In and Put Some Color On!: What Southern Mamas Tell Their Daughters that the Rest of Y'all Should Know Too
Lessons Learned on Bull Run Road
Southern by the Grace of God
Hm! Etiquette Guide to Japan: Know the Rules...that Make the Difference
Some more books on political theory...
The Limits of Pure Democracy by William Hurrell Mallock
Order and Legitimacy by Francis Graham Wilson (Google)
Political Philosophy and Cultural Renewal: Collected Essays by Francis Graham Wilson (Google Books)
Francis Graham Wilson was an admirer of [old] Spain... what would he think of Spain as it is now?
Looks like Transaction has a lot of their books available on Google for preview.