Sanʼichigo, yonʼichiroku himitsu kessha Nihon Kyōsantō kenkyo jōkyō
By: Naimushō Keihokyoku Hoanka [cho]
Publisher: Nihon Shiryō Kankōkai
Place of publication: Tōkyō
Language: jpn
Number of pages: 152
Other titles: Himitsu kessha Nihon Kyōsantō kenkyo jōkyō; Nihon Kyōsantō kenkyo jōkyō; 3.15, 4.16 himitsu kessha Nihon Kyōsantō kenkyo jōkyō; Himitsu kessha Nihon Kyōsantō kenkyo jōkyō.
Notes: Originally published: Nimitsu kessha Nihon Kyōsantō kenkyo jōkyō : Yonʼichiroku Jiken. 1929.