Allium spp. /ed by M. Diekmann - Rome : FAO, 1997. - 60 p. : ilus. - FAO. IPGRI technical guidelines for the safe movement of germplasm ; 18 . - FAO . - FAO. IPGRI technical guidelines for the safe movement of germplasm ; 18 . LCCN: 78921 Subjects--Topical Terms: Cebolla--Enfermedades.Cebolla--Germoplasma.Cebolla--Plagas.