Nisbet, J. (2024). David Douglas: A naturalist at work : an illustrated exploration across two centuries in the Pacific Northwest (Paperback edition.). Washington State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNisbet, Jack. David Douglas: A Naturalist at Work : An Illustrated Exploration Across Two Centuries in the Pacific Northwest. Paperback edition. Pullman, Washington: Washington State University Press, 2024.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNisbet, Jack. David Douglas: A Naturalist at Work : An Illustrated Exploration Across Two Centuries in the Pacific Northwest. Paperback edition. Washington State University Press, 2024.
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