@book{155688,
	author = {Tissot, B.P. and Institut Francais du Pétrole, IFP and World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Welte, D.H. and Institut Francais du Pétrole, IFP},
	title = {The role of geochemistry in exploration risk evaluation and decision making}
}