Incorrect ISBN Digest #105

[SkyWarp]

So I was entering information for #105: The Smoke Screen Mystery and noticed that the ISBN number on the inside of the book was not the same as the outside of the book.  It appears the inside ISBN number is a Nancy Drew book.  Does anyone know if this was corrected with different printings (were there any other printings)?

[tomswift2002]

In the late-80's, early-90's S&S gave books new ISBN's with each print run.  So if you look at a first printing vs third, you'll usually see a different number.

[MacGyver]

I've got different ISBNs on my copy too. Yeah, it is probably an error that was fixed in later printings.