Herbertia : Journal of the International Bulb Society

. International Bulb Society. Sanger, California: International Bulb Society, 1934. U.I.:IBONE. ISSN: 15598772. (S) 

Herbertia : Journal of the International Bulb Society

. Vol. 59-60 (2004). International Bulb Society. Sanger, California: International Bulb Society, 2004. U.I.:IBONE. ISSN: 15598772. (X) Publicación Periódica

Herbertia : Journal of the International Bulb Society

. Vol. 61-62 (2007). International Bulb Society. Sanger, California: International Bulb Society, 2007. U.I.:IBONE. ISSN: 15598772. (X) Publicación Periódica

Herbertia : Journal of the International Bulb Society

. Vol. 63 (2009). International Bulb Society. Sanger, California: International Bulb Society, 2009. U.I.:IBONE. ISSN: 15598772. (X) Publicación Periódica

Bulbs : Bulletin of the International Bulb Society

. International Bulb Society. Sanger, California: International Bulb Society, 2003. U.I.:IBONE. (S)