Colletta, N. J., Balachander, J., & Liang, X. (1996). The condition of young children in Sub-Saharan Africa: The convergence of health, nutrition, and early education. World Bank.

Colletta, Nat J., Jayshree Balachander, and Xiaoyan Liang. The Condition of Young Children in Sub-Saharan Africa: The Convergence of Health, Nutrition, and Early Education. Washington, D.C.: World Bank, 1996.

Colletta, Nat J., et al. The Condition of Young Children in Sub-Saharan Africa: The Convergence of Health, Nutrition, and Early Education. World Bank, 1996.