Heisei 20-nendo kokumin kōen ni okeru mizu kankyō kaizen hōsaku kentō gyōmu hōkokusho
Publisher: Kensetsu Gijutsu Kenkyūjo
Published: 2009
Place of publication: [Tokyo]
Language: jpn
Number of pages: 164
Other titles: Kokumin kōen ni okeru mizu kankyō kaizen hōsaku kentō gyōmu hōkokusho