Nevermind. Export still crashes, but I was able to get print to PDF to work. Wish I knew what was causing the crash, but I'm able to get the PDFs to the printer.
You could have tried exporting half of the book and then the other half.
Whichever half crashes - is the half that causing the problem.
Then export that problem half - in halves again, until you narrow it to a range of pages.
If both halves exported ok - then you could combine them in acrobat.
I had tried that. The only page that exported without crashing was page 12--the last page. It was the only page that did not have the IC story flowed onto it.
Diane: Sorry I wasn't around yesterday.
The way to get help with crashes is to post the Mac crash report (upload to http://pastebin.com/ and post a link here).
Without real data, it's mostly speculation...