World Health Organization & ebrary, Inc. (2007). World health statistics 2007. World Health Organization.
Chicago-čujuhus (17. p.)World Health Organization juo Inc ebrary. World Health Statistics 2007. Geneva, Switzerland: World Health Organization, 2007.
MLA-čujuhus (9. p.)World Health Organization juo Inc ebrary. World Health Statistics 2007. World Health Organization, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.