TY  - SER
AU  - Grant, P. R., Grant, B. R.
TI  - Non-random fitness variation in two populations of Darwin's finches
U1  - 598.883598.883 
PY  - 2000///
KW  - Non-random fitness variation in two populations of Darwin's finches
KW  - Darwin's finches, physiology, Galápagos
KW  - Pinzón de Darwin, fisiología, Galápagos
ER  -