TY  - BOOK
AU  - Hyrenius Hannes
TI  - New technique for studying demographic-economic- social interrelations
U1  - 304.6 
PY  - 1965///
CY  - Goteborg
PB  - Demographic Institute
KW  - Mathematical models
KW  - Population
KW  - Population research
KW  - Social sciences-research
ER  -