ebrary, Inc, & Woodburne, M. O. (2004). Late Cretaceous and Cenozoic mammals of North America: Biostratigraphy and geochronology. Columbia University Press.
Dyfyniad Arddull Chicagoebrary, Inc, and Michael O. Woodburne. Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. New York: Columbia University Press, 2004.
Dyfyniad MLAebrary, Inc, and Michael O. Woodburne. Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. Columbia University Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.