What has the author Raymond Hannagen written?

There is no author by the name of Raymond Hannagen found in any major literary databases or online sources. It's possible that:

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* The author uses a pen name. Try searching for variations of the name or looking for information about authors who may have published under similar names.

* The author is relatively unknown or publishes in a niche genre. You may have to use more specific search terms or explore specialized literary databases.

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