You know what? I've never been a fan of low-use things like a book for one 4 week rotation. At the same time, I don't know about the blue book.
However, most of what you'll see is medical, and, as far as surgical/trauma, if you want to get into it (and there's an EM program where you're at), the seniors SHOULD be happy to help you get your hands dirty. Show some initiative, and you could enjoy your 4 weeks pretty greatly.