Nothing helps you gain an understanding (if not an appreciation) of the Bluebook better than constant use. That being said, here are some places you can go if you're stuck on a citation issue. Don't forget that you can always contact a reference librarian for help.
Finally, a good trick for figuring out the citation for a truly bizarre source is to see how other law reviews have done it. In HeinOnline, Westlaw, and Lexis, you can limit your results to those articles occurring in the four journals that write the Bluebook (the Columbia Law Review, Harvard Law Review, University of Pennsylvania Law Review and the Yale Law Journal) and see how those editors have dealt with your source.