Bujun tankō sōgō keiei kiso chōsa
Subtitle: Shizenteki jōken : Sekitan, Bujuntan no seishitsu tsuika, Nichi-Man-Shi sekitanbai no seishitsu
Contributors: Bujun Tankō. Chōsagakari
Publisher: Bujun Tankō Sōmukyoku Shomuka Chōsagakari
Published: 1939
Place of publication: [Bujun
Language: jpn
Subjects: Coal ash
Notes: Caption title.

Reprinted from a report prepared by Chōsabu Daiyon Chōsashitsu.

Confidential document (stamped).