Tsugaru Kaikyōsen kōjishi
Subtitle: Seikan Tonneru
By: [henshū Nihon Tetsudō Kensetsu Kōdan Sapporo Kōji Jimusho]
Publisher: Nihon Tetsudō Kensetsu Kōdan Seikan Kensetsukyoku
Published: 1990
Place of publication: [Hakodate-shi]
Language: jpn
Number of pages: 2008
Subjects: Railroad tunnels; Design and construction; Underwater tunnels; Tsugaru Kaikyōsen
Notes: Accompanied by 1 envelope ([6] folded leaves of plates : ill., col. map) entitled: Seikan Tonneru kōteihyō.