Bōeki jiyūka no eikyō to taisaku
By: [hensha Nihon Rōdō Kumiai Sōdōmei Sōgō Chōsa Iinkai]
Series: Chōsa shiryō (Nihon Rōdō Kumiai Sōdōmei)
Publisher: Nihon Rōdō Kumiai Sōdōmei Sōgō Chōsa Iinkai
Published: 1960
Place of publication: Tōkyō
Language: jpn
Number of pages: 150