Don,
"Priciples of Real Estate Syndication" by Samuel Freshman is a GREAT book.
Another way to find good titles is to go to the Library of Congress website and search for books about Real Estate Syndication. There are a bunch of them. Then go to Amazon and eBay and you can generally pick up a few of these titles for a couple of bucks.
Personally, I like reading out of print books because most of the information they contain serve as the foundation for the way things are done today.
Just be careful with the books that were published before 1986 as it relates to Tax benefits.
Some titles I have read are:
How to Put Together a Real Estate Syndicate or Joint Venture by Daniel S. Berman
How to Play the New Real Estate Syndication Game by Richard R. Solem and Roger J. McClure
Limited Liability Company for Group Investments by Fred Crane
I have a few more, but I honestly don't feel like going to dig them up! LOL!
PM me if you want or need more titles. Hope this helps.