On Thu, 29 Apr 2010 12:48:14 -0700 (PDT), wrote:

Thanks Kevin.
The one you linked to has a *different* ISBN number (same: title,
author, publisher & year published);
The Canadian publisher assigned the ISBN number.

ISBN numbers are to identify the printing batch of a book. There are
times when you will find several identical new copies of a book store
with different ISBN numbers and different prices.