TY  - BOOK
AU  - Darwin,Charles
AU  - Stauffer,R.C.
TI  - Charles Darwin's Natural selection: being the second part of his big species book written from 1856 to 1858 
SN  - 0521201632
U1  - 576.82 23
PY  - 1975///
CY  - London
PB  - Cambridge University Press
KW  - Charles Darwin
KW  - Evolución
KW  - Evolution
KW  - Historia natural
KW  - Natural history
KW  - Ciencias básicas
KW  - Pure science
N1  - Incluye bibliografía (pp. 587-629) e índice (pp. 643-692)
ER  -