APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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