TY  - GEN
AU  - AA.VV.
TI  - Step-by-step Guide to the Estimation of Child Mortality
PY  - 1989///
CY  -  New York
PB  - United Nations
KW  - età-evolutiva
N1  - United Nations, Department of International Economic and Social Affairs / infanzia, mortalità, teoria, comparazione /
ER  -