Piragaoka iseki
Subtitle: Akiyama chiten hakkutsu chōsa hōkokusho
Series: Shari-chō bunkazai chōsa hōkoku -- 4
Publisher: Shari-chō Kyōiku Iinkai
Published: 1990
Place of publication: Hokkaidō Shari-gun Shari-chō
Language: jpn
Number of pages: 168