TY  - BOOK
AU  - Darwin,Charles
TI  - The origin of species by means of natural selection: or the preservation of favoured races in the struggle for life 
U1  - 576.5 23
PY  - 1951///
CY  - London
PB  - Oxford university press
KW  - Heredity
KW  - Evolution (Biology)
KW  - Natural selection
N1  - Includes index
ER  -