Insatsu sangyō ni okeru rōdō jōken tō jittai chōsa
By: [henshū Tōkyō-to Chūō Rōsei Jimusho Rōdō Kumiaika]
Publisher: Tōkyō-to Chūō Rōsei Jimusho; Tōkyō-to Chūō Rōsei Jimusho Rōdō Kumiaika
Published: 1990
Place of publication: Tōkyō
Language: jpn
Number of pages: 151