Compare the answers - they are different.
The publisher for the former is Addison-Wesley and Addison-Wesley Professional for the latter.
This is a complete mess. According to the book, the page In the first request is the correct publisher, but the number of pages is incorrect.
In my opinion, it is best to send two letters describing this situation. One for the owner of the API is the second for Addison-Wesley (please explain about Professional). Not sure if your answer will be received from the second .. anything ..
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