TY  - BOOK
AU  - Darwin, Charles, 1809-1882.
AU  - Hutchins, Robert Maynard, Ed.
TI  - The original of species by means of natural selection. The descent of ma and selection in relation to sex
SN  - 0-85229-163-9
CY  - Chicago, Il.
PB  - Encyclopaedia Britannica, Inc.
KW  - 1. EVOLUCIÓN, TEORÍA DE LA
KW  - 2. EVOLUCIÓN BIOLÓGICA
ER  -