Não informado. (2000). Transactions of the Horticultural Society of London. Horticultural Society of London.
Chicago-referens (17:e uppl.)Não informado. Transactions of the Horticultural Society of London. London: Horticultural Society of London, 2000.
MLA-referens (8:e uppl.)Não informado. Transactions of the Horticultural Society of London. Horticultural Society of London, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.