Dyfyniad APA

Simpson, G. G. (1953). Life of the last: An introduction to Paleontology. New Haven ; London: Yale University Press.

Dyfyniad Arddull Chicago

Simpson, George Gaylord. Life of the Last: An Introduction to Paleontology. New Haven ; London: Yale University Press, 1953.

Dyfyniad MLA

Simpson, George Gaylord. Life of the Last: An Introduction to Paleontology. New Haven ; London: Yale University Press, 1953.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.