Pēchika ni kansuru kenkyū
Subtitle: Funshō kaishiji ni okeru endōnai gasu ondo
Series: Kaitaku Kenkyūjo hōkoku -- dai 4-gō
Publisher: Kaitaku Kenkyūjo
Published: 1943
Place of publication: Shinkyō Tokubetsu-shi
Language: jpn
Number of pages: 30
Notes: Written by Imai Mitsuo.  Cf. T.p. verso