@article {67966,
	title = {The Petroleum System--Status of Research and Methods, 1990},
	volume = {1912},
	year = {1989},
	note = {United States},
	pages = {1-88},
	institution = {Department of the Interior},
	keywords = {Basins, carbon, natural gas, Oil, petroleum, stratigraphy},
	isbn = {1912},
	author = {U.S. Geological Survey,},
	editor = {Magoon, Leslie B.}
}
