APA
(2009). Bulletin on population and vital statistics in the escwa region. New york: United nations.
Chicago
2009. Bulletin on population and vital statistics in the escwa region. New york: United nations.
Harvard
(2009). Bulletin on population and vital statistics in the escwa region. New york: United nations.
MLA
Bulletin on population and vital statistics in the escwa region. New york: United nations. 2009.