Kankyō asesumento
Subtitle: keii to hōseika e no kadai
By: Sasaki Ryō
Series: Chōsa to jōhō -- dai 290-gō = -- Issue brief -- 290; Chōsa to jōhō -- dai 290-gō.
Publisher: Chōsa oyobi Rippō Kōsakyoku
Published: 1996
Place of publication: Tōkyō
Language: jpn
Number of pages: 10