Mathews, D. (2021). Cascadia revealed: A guide to the plants, animals & geology of the Pacific Northwest Mountains. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMathews, Daniel. Cascadia Revealed: A Guide to the Plants, Animals & Geology of the Pacific Northwest Mountains. Portland, OR: Timber Press, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMathews, Daniel. Cascadia Revealed: A Guide to the Plants, Animals & Geology of the Pacific Northwest Mountains. Timber Press, 2021.
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