TY  - BOOK
AU  - Darwin C
TI  - Origin of species by means of natural selection or the preservation of favoured races in the struggle for life and the descent of man and selection in relation to sex
U1  - 575.0162 
PY  - 1936///
CY  - N Y
PB  - Modern Library
KW  - Evolution
KW  - Natural selection
KW  - Sex
ER  -