@book{133868,
	author = {Achong, C. H. and ARPEL and ARPEL. Reunión a nivel de expertos (32a. : 1978 sept. 25-29 : Buenos Aires) and Achong, C. H. and ARPEL},
	title = {Sobre la explotación de crudos extra-pesados en Venezuela},
	publisher = {ARPEL},
	year = {1978},
	address = {Buenos Aires}
}