TY  - BOOK
AU  - Preston, Samuel H.
ED  - International Union for the Scientific Study of Population.
TI  - Biological and social aspects of mortality and the length of life
U1  - 304.6 
PY  - 1980///
CY  - [Belguim]
PB  - International Union for the Scientific Study of Popul ation
KW  - Mortality
N1  - Includes bibliographical references
ER  -