@book{50772,
	author = {Vogel, Robert Cross. and González Vega, Claudio.},
	title = {Agricultural credit in Costa rica},
	publisher = {Asociated Colleges of the Midwest. Central American Field Program,},
	year = {1969},
	series = {AID/ACM contract No. AID-515-171-T},
	address = {San José :}
}