International Orchid Commission on Classification, N., Royal Horticultural Society (Gran Bretaña), Cribb, P. J. 1., Greatwood, J., & Hunt, P. F. (1985). Handbook on orchid nomenclature and registration (3. edition.). London: International Orchid Commission.

International Orchid Commission on Classification, Nomenclature, Royal Horticultural Society (Gran Bretaña), Phillip James 1946- Cribb, J. Greatwood, and Peter Francis Hunt. Handbook On Orchid Nomenclature and Registration. 3. edition. London: International Orchid Commission, 1985.

International Orchid Commission on Classification, Nomenclature, et al. Handbook On Orchid Nomenclature and Registration. 3. edition. London: International Orchid Commission, 1985.