TY  - BOOK
AU  - Darwin, Charles
TI  - The origin of species 
SN  - 0-375-75146-7
AV  - QH365.O2 
CY  - The modren Library,  New York,  1998.
KW  -  Natural history
KW  -  Natural selection
KW  -  Variation (Biology)
KW  - Biology
KW  - Evolution (Biology)
ER  -