Kenkyū kōmoku ni taisuru shoken
By: Kien Tōkanbu (Matsuda hokan)
Publisher: Sōryokusen Kenkyūjo
Published: 1940
Place of publication: [Tokyo]
Language: jpn
Notes: Cover title.

Ms. hand-written carbon copies on official stationery of Sōryokusen Kenkyūjo.

Issued as confidential document.