Kakuritsukō Tankō chōsa hōkokusho
By: shusa Ōyabu Kazuichi ; chōsain Inoue Sen
Contributors: Inoue, Sen
Publisher: s.n.
Published: 1932
Place of publication: [Japan
Language: jpn
Number of pages: 72
Subjects: Coal trade; Coal mines and mining
Notes: Issued as a confidential document (stamped).