Ōtsubo iseki hakkutsu chōsa hōkokusho
Series: Yamagata-ken maizō bunkazai chōsa hōkokusho -- dai 166-shū
Publisher: Yamagata-ken; Yamagata-ken Kyōiku Iinkai
Published: 1991
Place of publication: [Yamagata-shi]
Language: jpn
Number of pages: 27