Chūto saiyōsha shūgyō jittai chōsa kekka hōkokusho
Subtitle: Heisei 6-nendo koyō dōkō jittai chōsa tokubetsu chōsa
Publisher: Hokkaidō Shōkō Rōdō Kankōbu
Published: 1995
Place of publication: Sapporo-shi
Language: jpn
Number of pages: 42