"New Testament Theology: Basic Issues in the Current Debate" by Gerhard Hasel - which version?

I see that "New Testament Theology: Basic Issues in the Current Debate" by Gerhard Hasel is available in two versions.

Is there any advantage in the earlier version (at $3 more than the later)??

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They are two different books. One is New and the othe is Old.

They are two different books. One is New and the othe is Old.

New and Old Testament, that is.

I feel a right twit! Perhaps new glasses would help!! Thanks folks.