Darnell, A. W. Orchids for the outdoor garden: A descriptive list of the world's orchids, for the use of amateur gardeners.
Chicago-viite (17. p.)Darnell, Anthony William. Orchids for the Outdoor Garden: A Descriptive List of the World's Orchids, for the Use of Amateur Gardeners.
MLA-viite (8. p.)Darnell, Anthony William. Orchids for the Outdoor Garden: A Descriptive List of the World's Orchids, for the Use of Amateur Gardeners.
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