Koshō no kankyō hozen ni kansuru chōsa kekka hōkokusho
Subtitle: koshō suishitsu hozen tokubetsu sochihō no shiko jōkyō o chūshin to shite : Heisei gannendo teiki chōsa
Publisher: Sōmuchō Gyōsei Kansatsukyoku
Published: 1990
Place of publication: [Tokyo]
Language: jpn
Number of pages: 83
Subjects: Water quality management; Lakes; Environmental aspects; Ponds
Notes: Cover title.

"F10".