World Bank. (1997). Health, nutrition & population. Human Development Network of the World Bank Group.
芝加哥风格引文World Bank. Health, Nutrition & Population. Washington, D.C.: Human Development Network of the World Bank Group, 1997.
MLA引文World Bank. Health, Nutrition & Population. Human Development Network of the World Bank Group, 1997.
警告：这些引文格式不一定是100％准确.