Dyfyniad APA
Kimbel, W. H., Rak, Y., & Johanson, D. C. (2004). The skull of Australopithecus afarensis. Oxford University Press.
Dyfyniad Arddull Chicago
Kimbel, William H., Yoel Rak, and Donald C. Johanson. The Skull of Australopithecus Afarensis. Oxford ; New York: Oxford University Press, 2004.
Dyfyniad MLA
Kimbel, William H., et al. The Skull of Australopithecus Afarensis. Oxford University Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.