Ramusāru jōyaku
Subtitle: shizen no hōko, shitchi hozen no tame ni
By: Namekawa Kenʼichi
Series: Chōsa to jōhō -- dai 209-gō = -- Issue brief -- no. 209; Chōsa to jōhō -- dai 209-gō.
Publisher: Chōsa oyobi Rippō Kōsakyoku
Published: 1993
Place of publication: Tōkyō
Language: jpn
Subjects: Convention on Wetlands of International Importance Especially as Waterfowl Habitat; Wetland conservation