TY  - BOOK
AU  - Knibbs,George Handley
TI  - The mathematical theory of population, of its character and fluctuations , and of the factors which influence them
SN  - 0405079850
PY  - 1976///
CY  - New York
PB  - ARNO Press
KW  - Population
KW  - Vital statistics
ER  -