Shōwa 57-nendo kōiki chōsa hōkokusho
Publisher: Tsūshō Sangyōshō Shigen Enerugīchō
Published: 1983
Place of publication: [Tokyo]
Language: jpn
Number of pages: 11
Subjects: Boring; Prospecting; Nonferrous metals; Geology
Other titles: Kōiki chōsa hōkokusho.
Notes: Cover title.

Vol. 6 accompanied by maps (13 folded leaves) and v. 7 by maps (4 folded leaves) in each pocket.

Errata slip inserted.

Includes bibliographies.