Kari hiryō no chōsa
Series: Shiryō -- dai 71-gō; Shiryō (Sangyō Keizai Kenkyūjo) -- dai 71-gō.
Publisher: Sangyō Keizai Kenkyūjo
Published: 1941
Place of publication: Tōkyō
Language: jpn
Number of pages: 76
Notes: Issued as confidential document.