Hokushi ni okeru ryūka tekkō
Contributors: Mantetsu Hokushi Keizai Chōsajo
Publisher: Mantetsu Hokushi Keizai Chōsajo
Published: 1941
Place of publication: [Peking]
Language: jpn
Number of pages: 50
Subjects: Sulfide minerals
Notes: Cover title.

Prepared by Hirose Takeo. Cf. Pref.

"Ho No. 118; Hokkeika 20; Otsuriitsubun E21; In 150."

Confidential document (stamped).