APA

(2004). 2004 little data book. Washington, D.C: International Bank for Reconstruction and Development.

Chicago

2004. 2004 little data book. Washington, D.C: International Bank for Reconstruction and Development.

Harvard

(2004). 2004 little data book. Washington, D.C: International Bank for Reconstruction and Development.

MLA

2004 little data book. Washington, D.C: International Bank for Reconstruction and Development. 2004.