World Bank. (1997). Health, nutrition & population. Human Development Network of the World Bank Group.
Chicago ZitierstilWorld Bank. Health, Nutrition & Population. Washington, D.C: Human Development Network of the World Bank Group, 1997.
MLA ZitierstilWorld Bank. Health, Nutrition & Population. Human Development Network of the World Bank Group, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.