@book{78507,
	author = {López-Pereira, Miguel A. and García, Joào Carlos.},
	title = {The maize seed industries of Brazil and Mexico :},
	publisher = {Centro Internacional de Mejoramiento de Maíz y Trigo,},
	year = {1997.},
	series = {Economics. Working paper},
	address = {México, D.F. :}
}