TY  - BOOK
AU  - Smith,David
AU  - Keyfitz,Nathan
TI  - Mathematical demography: selected papers 
T2  - Biomathematics
SN  - 0387078991
U1  - 519.5 
PY  - 1977///
CY  - New York
PB  - Springer
KW  - BIOMETRIA
KW  - DEMOGRAFIA
KW  - ESTADISTICA
KW  - ESTADISTICAS VITALES
ER  -