APA

Secretariat of the Convention on Biological Diversity, UNEP World Conservation Monitoring Centre, . (2001). Global biodiversity outlook. Montreal: UNEP.

Chicago

Secretariat of the Convention on Biological Diversity, UNEP World Conservation Monitoring Centre, . 2001. Global biodiversity outlook. Montreal: UNEP.

Harvard

Secretariat of the Convention on Biological Diversity, UNEP World Conservation Monitoring Centre, . (2001). Global biodiversity outlook. Montreal: UNEP.

MLA

Secretariat of the Convention on Biological Diversity, UNEP World Conservation Monitoring Centre, . Global biodiversity outlook. Montreal: UNEP. 2001.