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Note inside title page says: 'Xerox Education Publication. Book Club Edition'. Relationship in publishing with Ottenheimer is unknown.

MSU has a copy of this book, and another published by Charlton which appears to be the same. Presumably the Charlton is mass-market and this is for a school bookclub.

When searching for this character, note that spelling varies between Scooby Doo and Scooby-Doo.