@book{34834,
	author = {Vélez Cabrales, Roberto. and Romero Rodríguez, Hugo Hernando.},
	title = {Régimen legal de los oleoductos y gasoductos en Colombia},
	publisher = {[s.n.]},
	year = {1990.},
	address = {Bogotá, D.E.},
	note = {On cover: 1991.}
}