Dyfyniad APA
Larson, E. J. (2003). Trial and error: The American controversy over creation and evolution (3rd ed.). Oxford University Press.
Dyfyniad Arddull Chicago
Larson, Edward J. Trial and Error: The American Controversy over Creation and Evolution. 3rd ed. New York: Oxford University Press, 2003.
Dyfyniad MLA
Larson, Edward J. Trial and Error: The American Controversy over Creation and Evolution. 3rd ed. Oxford University Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.