TY  - BOOK
AU  - Darwin,Charles Robert,1809-1882
TI  - The Origin of species by means of natural selection. The Descent of man and selection in relation to sex
PY  - 1983///
CY  - Chicago
PB  - Encyclopedia Britannica
KW  - Evolution
KW  - Origin of species
KW  - Natural selection
KW  - Heredity
KW  - Man
KW  - Origin
N1  - Includes glossary and index
ER  -