TY  - BOOK
AU  - Darwin,Charles,1809-1882
TI  - The origin of species by means of natural selection or the preservation of favoured races in the struggle for life
T2  - Collier Books HS 34
U1  - 575.01/D259/1962 
PY  - 1962///
CY  - Nueva York, Estados Unidos 
PB  - Collier Books.
KW  - EVOLUCION
KW  - ORIGEN DE LAS ESPECIES
KW  - SELECCION NATURAL
ER  -