Cita APA (7th ed.)

Graham, A. (1999). Late Cretaceous and Cenozoic history of North American vegetation, north of Mexico. Oxford University Press.

Cita Chicago (17th ed.)

Graham, Alan. Late Cretaceous and Cenozoic History of North American Vegetation, North of Mexico. New York: Oxford University Press, 1999.

Cita MLA (9th ed.)

Graham, Alan. Late Cretaceous and Cenozoic History of North American Vegetation, North of Mexico. Oxford University Press, 1999.