@book{19697,
	author = {Centro Internacional de Mejoramiento de Maíz y Trigo},
	title = {CIMMYT world wheat facts and trends},
	publisher = {CIMMYT,},
	year = {198-19 .},
	address = {México, D.F. :},
	note = {La biblioteca tiene: 1981, 1983, 1985, 1990-91, 1995, (sup.), 1995-96}
}