APA
,, . (1995). Symposium on the United Nations conference on environment and development (UNCED) the convention on biological diversity and the Bern convention : The next steps. Strasbourg: Council of Europe.
Chicago
,, . 1995. Symposium on the United Nations conference on environment and development (UNCED) the convention on biological diversity and the Bern convention : The next steps. Strasbourg: Council of Europe.
Harvard
,, . (1995). Symposium on the United Nations conference on environment and development (UNCED) the convention on biological diversity and the Bern convention : The next steps. Strasbourg: Council of Europe.
MLA
,, . Symposium on the United Nations conference on environment and development (UNCED) the convention on biological diversity and the Bern convention : The next steps. Strasbourg: Council of Europe. 1995.