Sarobetsu sōgō chōsa chūkan hōkokusho
Subtitle: Mizu bumon : Shōwa 40-nendo
Publisher: Hokkaidō Kaihatsukyoku
Published: 1966
Place of publication: [Sapporo-shi]
Language: jpn
Subjects: Mudflows; Groundwater; Drainage
Notes: Cover title.