Cita APA (7th ed.)

Eldredge, N. (1989). Time frames: The evolution of punctuated equilibria. Princeton University Press.

Cita Chicago (17th ed.)

Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton: Princeton University Press, 1989.

Cita MLA (9th ed.)

Eldredge, Niles. Time Frames: The Evolution of Punctuated Equilibria. Princeton University Press, 1989.