Ross, J. A. (1988). Family planning and child survival: 100 developing countries. Center for Population and Family Health, Columbia University.
Chicago Style aipamenaRoss, John A. Family Planning and Child Survival: 100 Developing Countries. New York: Center for Population and Family Health, Columbia University, 1988.
MLA aipamenaRoss, John A. Family Planning and Child Survival: 100 Developing Countries. Center for Population and Family Health, Columbia University, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.