Shizen jōka kinō o katsuyōshita suishitsu no kaizen hōsaku ni kansuru chōsa hōkoku (BOD eiyō enrui nado o shutaru taishō to shite).
Contributors: Shigen Chōsakai (Japan)
Series: Kagaku Gijutsuchō Shigen Chōsakai hōkoku -- dai 93-gō
Publisher: Kagaku Gijutsuchō Shigen Chōsakai
Published: 1984
Place of publication: Tōkyō
Language: jpn
Number of pages: 192
Subjects: Water -- Purification.; Water -- Purification -- Biological treatment.
Notes: Cover title.

Errata slip inserted.