APA
Cohen S., Dudley N. & Convention on Biological Diversity. (2005). Towards Effective Protected Area Systems-Action Guide to Implement the Convention on biological diversity programme of work on protected areas. : .
Chicago
Cohen SHeldon, Dudley Nigel and Convention on Biological Diversity. 2005. Towards Effective Protected Area Systems-Action Guide to Implement the Convention on biological diversity programme of work on protected areas. : .
Harvard
Cohen S., Dudley N. and Convention on Biological Diversity. (2005). Towards Effective Protected Area Systems-Action Guide to Implement the Convention on biological diversity programme of work on protected areas. : .
MLA
Cohen SHeldon, Dudley Nigel and Convention on Biological Diversity. Towards Effective Protected Area Systems-Action Guide to Implement the Convention on biological diversity programme of work on protected areas. : . 2005.