Gould, S. J. (2002). The structure of evolutionary theory. Belknap Press of Harvard University Press.
Dyfyniad Arddull ChicagoGould, Stephen Jay. The Structure of Evolutionary Theory. Cambridge, Mass: Belknap Press of Harvard University Press, 2002.
Dyfyniad MLAGould, Stephen Jay. The Structure of Evolutionary Theory. Belknap Press of Harvard University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.