Bujun tankō sōgō keiei kiso chōsa
Subtitle: Shizenteki jōken : Shigen, sekitan, Bujuntan no yōto
Publisher: Bujun Tankō Sōmukyoku Shomuka Chōsagakari
Published: 1940
Place of publication: [Bujun
Language: jpn
Number of pages: 23
Subjects: Coal trade
Notes: Caption title.

Confidential document (stamped).