Thanks for posting this. Note that it will only show that if there's a print version that Amazon can get the pages from...
Betsy
AND if there's been a syncing of the device since that edition was referenced. . . .so, for example, the book might not have had the page number reference file when you downloaded it. If you've not had wireless on since: even if it now shows, on the product page, that there is a page number reference, your device won't know it. So that's another reason to periodically connect even if you leave wireless off most of the time.