Ross, J. A. (1988). Family planning and child survival: 100 developing countries. New York: Center for Population and Family Health, Columbia University.
Παραπομπή Chicago StyleRoss, John A. Family Planning and Child Survival: 100 Developing Countries. New York: Center for Population and Family Health, Columbia University, 1988.
Παραπομπή MLARoss, John A. Family Planning and Child Survival: 100 Developing Countries. New York: Center for Population and Family Health, Columbia University, 1988.
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