Taylor, R. J., & Douglas, G. W. (1995). Mountain plants of the Pacific Northwest: A field guide to Washington, western British Columbia, and southeastern Alaska. Mountain Press Pub. Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTaylor, Ronald J., और George W. Douglas. Mountain Plants of the Pacific Northwest: A Field Guide to Washington, Western British Columbia, and Southeastern Alaska. Missoula, Mont.: Mountain Press Pub. Co., 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTaylor, Ronald J., और George W. Douglas. Mountain Plants of the Pacific Northwest: A Field Guide to Washington, Western British Columbia, and Southeastern Alaska. Mountain Press Pub. Co., 1995.
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