Yuoi chashi ato,  poromoi chashi ato, nibutani iseki
Series: Hokkaidō maizō bunkazai sentā chōsa hōkokusho -- dai 26-shū; Hokkaidō maizō bunkazai sentā chōsa hōkokusho -- dai 26-shū.
Publisher: Hokkaidō Maizō Bunkazai Sentā
Published: 1986
Place of publication: Sapporo
Language: jpn
Number of pages: 314