Heisei 21-nendo EST ni kansuru chōsa kentō itaku gyōmu
Subtitle: Heisei 21-nendo Kankyōshō itaku gyōmu hōkokusho
Publisher: Nihon Nōritsu Kyōkai Sōgō Kenkyūjo
Published: 2010
Place of publication: Tōkyō
Language: jpn
Other titles: EST ni kansuru chōsa kentō itaku gyōmu
Notes: Cover title.