Ran-In kōsan shigen
Series: Daihachi Chōsa Iinkai shiryō -- 12, 1; Shiryō. Hei -- dai 252-gō 1B; Daihachi Chōsa Iinkai shiryō -- 12, 1.; Shiryō -- dai 252-gō 1B.
Publisher: Tōa Kenkyūjo
Published: 1942
Place of publication: Tōkyō
Language: jpn
Subjects: Mines and mineral resources
Notes: Cover title.