@book{168165,
	author = {Raballand, Ga�l. and Macchi, Patricia.},
	title = {Rural road investment efficiency:},
	publisher = {World Bank,},
	year = {c2010.},
	series = {Directions in development. Infrastructure},
	address = {Washington, D.C. :},
	url = {http://elibrary.worldbank.org/content/book/9780821382141}
}