Darnell, A. W. Orchids for the outdoor garden: A descriptive list of the world's orchids, for the use of amateur gardeners.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDarnell, Anthony William. Orchids for the Outdoor Garden: A Descriptive List of the World's Orchids, for the Use of Amateur Gardeners.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDarnell, 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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