北海道労働運動年表
Subtitle: Sengo hen : 1945-nen--1971-nen 8-gatsu
By: [Zendō Rōkyō 20-nenshi Hensan Iinkai hensan]
Publisher: Zen Hokkaidō Rōdō Kumiai Kyōgikai
Published: 1971
Place of publication: Sapporo
Language: jpn
Number of pages: 482
Subjects: Labor unions; History; Chronology
Other titles: Hokkaidō rōdō undō nenpyō
Notes: Bibliography: 5th prelim. page.