APA
Earth Summit plus 5 Special Session of the General Assembly to Revie w and Appraise the Implementations of Agenda 21, United Nations Department of Public Information, . (1997). The United Nations convention to combat desertification. New York: United Natiions.
Chicago
Earth Summit plus 5 Special Session of the General Assembly to Revie w and Appraise the Implementations of Agenda 21, United Nations Department of Public Information, . 1997. The United Nations convention to combat desertification. New York: United Natiions.
Harvard
Earth Summit plus 5 Special Session of the General Assembly to Revie w and Appraise the Implementations of Agenda 21, United Nations Department of Public Information, . (1997). The United Nations convention to combat desertification. New York: United Natiions.
MLA
Earth Summit plus 5 Special Session of the General Assembly to Revie w and Appraise the Implementations of Agenda 21, United Nations Department of Public Information, . The United Nations convention to combat desertification. New York: United Natiions. 1997.