00359nam a2200109Ia 4500008004100000020000600041082001500047100003400062245008600096260004800182300001900230250602s9999    xx            000 0 und d  a0  a333.918GUI  aRamsar Convention on wetlands 0aGuidelines for International Co-Operation Under the Ramsar Convention on wetlands  aSwitzerlandbRamsar Convention Bureauc1971  a51 p. ; 30 cm.