Eldredge, N. (1989). Time frames: The evolution of punctuated equilibria. Princeton University Press.
Chicago-čujuhus (17. p.)Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton: Princeton University Press, 1989.
MLA-čujuhus (9. p.)Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton University Press, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.