Iwate-ken no suidō gaikyō
Subtitle: Shōwa 50-nen 3-gatsu 31-nichi genzai
Publisher: Iwate-ken Kankyō Hokenbu Kankyō Eiseika
Published: 1975
Place of publication: [Morioka]
Language: jpn
Number of pages: 30
Subjects: Water-supply; Waterworks; Statistics
Notes: Cover title.