Wingate, M. (2013). Perennials for the pacific northwest: 500 best plants for flower gardens.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWingate, Marty. Perennials for the Pacific Northwest: 500 Best Plants for Flower Gardens. 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWingate, Marty. Perennials for the Pacific Northwest: 500 Best Plants for Flower Gardens. 2013.
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