Ryūen tekkō kaihatsu genkyō oyobi keikaku gaiyō
Subtitle: tsuketari, Ryūen tekkōseki yōkōro shiyō hōkokusho, Ryūen Tekkō Kabushiki Kaisha hō
Contributors: Mantetsu Hokushi Keizai Chōsajo
Series: Hokushi seitetsu ritchi jōken chōsa shiryō -- 2
Publisher: Mantetsu Hokushi Keizai Chōsajo
Published: 1940
Place of publication: [Peking]
Language: jpn
Number of pages: 41
Subjects: Iron mines and mining
Notes: Cover title.

Prepared by Izumi Denzō. Cf. Pref.

"Ho No. 70; Hokkei Go 9; Otsushibun 253.3; In 50."

Confidential document (stamped).