Toshi ni okeru kankyō gakushū no suishin ni tsuite
Subtitle: kankyō ni yasashii raifu sutairu o mezashite
Series: Heisei 7-nendo Dai 38-kai Tōkyō-to shokuin kaigai kenkyū hōkoku -- no. 11
Publisher: Tōkyō-to Shokuin Kenkyūjo
Published: 1997
Place of publication: [Tokyo]
Language: jpn
Number of pages: 49
Notes: Report prepared by Nagasaki Junʼichi. Cf. pref.