Shisōhan no hogo ni tsuite.
Series: Shihō kenkyū hōkokusho -- dai 21-shū, 10
Publisher: Shihōshō Chōsaka
Published: 1937
Place of publication: [Tokyo]
Language: jpn
Number of pages: 448
Subjects: Internal security -- Japan.; Subversive activities -- Japan.; Communists -- Japan.
Notes: Issued as confidential document.