Hokuman shuyō tankō genkyō chōsa hōkoku
Contributors: Mantetsu Hokuman Keizai Chōsajo
Series: Hokkei keizai shiryō -- dai 81, 93-gō
Publisher: Mantetsu Hokuman Keizai Chōsajo
Published: 1938
Place of publication: [Harbin]
Language: jpn
Subjects: Coal mines and mining
Notes: Cover title.

Prepared by Hayashi Shigeki. Cf. Pref.