TY  - CHAP
A1  - Beard, R.E.
T1  - Note on some mathematical mortality models
Y1  - 1959
A3  - Woolstenholme, G.E.W.
A3  - O’Connor, M.
T2  - The Lifespan of Animals
CY  - Boston
PB  - Little, Brown and Company
SP  - 302
EP  - -311

ER  -