Eldredge, N. (1989). Time frames: The evolution of punctuated equilibria. Princeton University Press.
Čikaški stil citiranja (17. izdanje)Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton: Princeton University Press, 1989.
MLA način citiranja (9. izdanje)Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton University Press, 1989.
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