Grant, P. R., & Grant, B. R. (2011). Causes of lifetime fitness of Darwin's finches in a fluctuating environment. National Academy of Sciences.
Čikaški stil citiranjaGrant, Peter R., i B. Rosemary Grant. Causes of Lifetime Fitness of Darwin's Finches in a Fluctuating Environment. National Academy of Sciences, 2011.
MLA način citiranjaGrant, Peter R., i B. Rosemary Grant. Causes of Lifetime Fitness of Darwin's Finches in a Fluctuating Environment. National Academy of Sciences, 2011.
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