TY  - GEN
AU  - 
AU  - UNITED NATIONS
TI  - Methods of Appraisal of Quality of Basic Data for Population Estimates
U1  - 304.6/UNI 
PY  - 1955///
CY  - NEW YORK
PB  - United Nations
N1  - POPULATION GROWTH; POPULATION MIGRATION; POPULATION POLICY
ER  -