APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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