At 12:06 PM 12/12/2013 -0500, Owen Leonard wrote:

...

978-1594631764 978-0316176484

For what it's worth, I get results for these numbers if I manually remove the hyphen. I too get no results from the 10-digit version.

Also, for what it's worth, title: And the Mountains Echoed (Hosseini, Khaled) gives 9781611761801, 1611761808 and 2013626634 -- but not 159463176X [oth, 9781594631764 is good, as you say, without the hyphens.] Our cataloguers tell me that LoC are "seriously not using ISBN-10" for new publications, *and* that "pre-publication" ISBNs can be most misleading -- publishers often count on them, use them, and then get a different "final" ISBN. Best - Paul