Shizen chiiki toire shinyō shori gijutsu bun'ya
Subtitle: Heisei 25-nendo jisshō taishō gijutsu no kankyō hozen kōka tō
Series: Kankyō gijutsu jisshō jigyō kōhō shiryō
Publisher: Kankyōshō
Published: 2014
Place of publication: Tōkyō-to Chiyoda-ku
Language: jpn
Number of pages: 31
Subjects: Toilets; Sewage; Purification
Notes: Cover title.