TY  - CHAP
A1  - Benjamin, B.
T1  - Actuarial aspects of human lifespans
Y1  - 1959
A3  - Wolstenholme, G.E.W.
A3  - O’Connor, M.
T2  - CIBA Foundation Colloquia on Ageing. The life span of animals
CY  - Boston
PB  - Little, Brown and Company
SP  - 2
EP  - -20

ER  -