@article {455,
	title = {Studies in neotropical paleobotany. I. The Oligocene communities of Puerto Rico},
	journal = {Annals of the Missouri Botanical Garden},
	volume = {56},
	year = {1969},
	month = {1969///},
	pages = {308 - 357},
	url = {www.jstor.org/stable/2394849},
	author = {Graham, A. and Jarzen, D. M.}
}
