Obira kōzanshi
Subtitle: Obira kozan
By: [henshūsha Ogata Chōritsu Rekishi Minzoku Shiryōkan "Obira kōzanshi" Henshū Jimukyoku]
Publisher: Ogata-machi
Published: 2004
Place of publication: Ōita-ken Ōno-gun Ogata-machi
Language: jpn
Number of pages: 242
Subjects: Mines and mineral resources
Other titles: Obira kozan
Notes: Includes bibliographical references.

In Japanese.