Hansen, G. (1895). The orchid hybrids: Enumeration and classification of all hybrids of orchids published up to October 15, 1895. Dulau.
Chicago-referens (17:e uppl.)Hansen, Geo. The Orchid Hybrids: Enumeration and Classification of All Hybrids of Orchids Published Up to October 15, 1895. London: Dulau, 1895.
MLA-referens (8:e uppl.)Hansen, Geo. The Orchid Hybrids: Enumeration and Classification of All Hybrids of Orchids Published Up to October 15, 1895. Dulau, 1895.
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