Dokō Kumiai no kenkyū
Series: Chōsa hōkoku -- dai 1-shū; Chōsa hōkoku (Otaru Kōtō Shōgyō Gakkō. Hokkaidō Keizai Kenkyūjo) -- dai 1-shū.
Publisher: Otaru Kōtō Shōgyō Gakkō Hokkaidō Keizai Kenkyūjo
Published: 1934
Place of publication: Otaru-shi
Language: jpn
Number of pages: 128
Subjects: Construction workers; Labor unions; History
Notes: One folded map in pocket.

Includes bibliographical references (p. 119-121).