@book{344355,
	author = {Caballero D., H.},
	title = {Seminario labranza reducida en el Cono Sur},
	publisher = {IICA, },
	year = {[nd]. },
	address = {[np]: },
	note = {IICA; 71 tables ; 21 graphs ; 7 illus. ; Several bibliographies}
}