@book{152667,
	author = {Dunstan, A.E and Nash, A.W.},
	title = {The science of petroleum. Volume IV Part V},
	publisher = {Oxford University Press},
	year = {1938},
	address = {London},
	note = {Contenido: Section 43. Oil shales, torbanites, cannels Section 44. Shale oils and tar oils}
}