@book{17461,
	author = {Johnston, Bruce F. and Mellor, John W.},
	title = {The role of agriculture in economic development},
	publisher = {s.e),},
	year = {(s.a.)},
	address = {(s.l. :},
	note = {Sobretiro de : Américan Economic Review 51(4): 566-593, 1961}
}