Robert,
Any author that tells you his book is absolutely 100% correct - no factual or typographical errors - is trying to have a lend of you!
The error was discovered as a result of further research and was confirmed correct before posting: I think you can rub out the pencil and
ink it in.
If I (or anyone else: the book includes an email address for suggested changes, comments, etc) discover any other blunders, I'll post them here, too.
Looking forward to catching up at Corowa.....
Mike