The I wonder why... series reused ISBNs for different books.
In the library where I cataloged them :
ISBN 0871974525 had eight distinct titles (9 in WorldCat)
ISBN 0871974533 had six (8 in WorldCat)
On 20 May 2013 13:02, Shlomo Sanders <[log in to unmask]>
Sorry, no numbers, but I have heard complaints of different works having the same ISBN.
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