Shōwa 42-nendo jūnendo kōzō bunrui chōsa chūkan hōkokusho
Publisher: Hokkaidō Kaihatsukyoku Nōgyō Suisanbu
Published: 1968
Place of publication: [Sapporo-shi]
Language: jpn
Number of pages: 79
Subjects: Clay soils; Analysis; Reclamation of land
Other titles: Jūnendo kōzō bunrui chōsa chūkan hōkokusho
Notes: Cover title.