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I clicked a book on the Amazon Books homepage and couldn't get it to work with the URL, ISBN, or ISBN-14.

The Fault in Our Stars Paperback by John Green: http://www.amazon.com/The-Fault-Stars-John-Green/dp/01424241...

http://www.speedcite.com/?q=9780142424179&f=chi works. I had to remove the dash from the ISBN-14. This is a known issue (as of an hour ago). For the ISBN-10, there's a check digit X (http://en.wikipedia.org/wiki/Check_digit#Design) that I haven't encountered before. Thank you for pointing out these issues!

OK, I've fixed both of these ISBN issues and pushed them to production. So both 014242417X and 978-0142424179, and similar ISBNs, should be no problem.

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