TY  - BOOK
AU  - Darwin,Charles
AU  - Stauffer,R.C.
AU  - Smith,Sydney
AU  - Rachootin,Stan
TI  - Charles Darwin's natural selection: being the second part of his big species book written from 1856 to 1858 
SN  - 0521348072
PY  - 1987///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Natural selection
KW  - Evolution
N1  - Bibliography : p. 587- p.629
ER  -