Puranto yushutsu ni okeru takokukan kyōryoku no jittai to kinʼyū mondai
Series: Chōsa shiryō -- no. 12; Chōsa shiryō (Nihon Yushutsunyū Ginkō. Kaigai Tōshi Kenkyūjo) -- no. 12.
Publisher: Nihon Yushutsunyū Ginkō Kaigai Tōshi Kenkyūjo
Published: 1980
Place of publication: Tōkyō
Language: jpn
Number of pages: 51