Demography
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Cambridge [Eng.]
Published for the Institute of Actuaries and the Faculty of Actuaries at the University Press
c1959.
|
| Edizioa: | 3rd ed. |
| Gaiak: |