Het Geheim van de Maangrotten
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Overview:
- Title: Het Geheim van de Maangrotten
- Author: W. J. Verbeeten
- Year: 1969
- Publisher: Helmond
- Pages: 160
- Binding: Hardcover
- Type: Novel
- Title Reference: Het Geheim van de Maangrotten
- Notes:
- Hardcover with pictorial boards. No dustjacket.
- Date from Fandata
- Cover and interior art are credited on the copyright page.