@article {Kaye1956,
	title = {Lower Tertiary of Puerto Rico},
	journal = {AAPG Bulletin},
	volume = {40},
	number = {1},
	year = {1956},
	pages = {108{\textendash}121},
	keywords = {RCBS, TIP},
	url = {http://archives.datapages.com/data/bulletns/1953-56/data/pg/0040/0001/0100/0108.htm},
	author = {Kaye, Clifford A}
}
@article {BerryhillHL1960,
	title = {Stratigraphy, sedimentation, and structure of Late Cretaceous rocks in eastern Puerto Rico{\textendash}preliminary report},
	journal = {AAPG Bulletin},
	volume = {44},
	year = {1960},
	pages = {137{\textendash}155},
	keywords = {RCBS, TIP},
	url = {http://archives.datapages.com/data/bulletns/1957-60/data/pg/0044/0002/0100/0137.htm},
	author = {{Berryhill H L}, Jr and Briggs, R P and Glover, L}
}
