Dyfyniad APA
Shepard, P., & Shepard, F. R. (1998). Coming home to the Pleistocene. Island Press.
Dyfyniad Arddull Chicago
Shepard, Paul, and Florence R. Shepard. Coming Home to the Pleistocene. Washington, D.C.: Island Press, 1998.
Dyfyniad MLA
Shepard, Paul, and Florence R. Shepard. Coming Home to the Pleistocene. Island Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.