Deutsch, H. J. (1962). Surveying the 49th parallel, 1858-61: United States-Canada boundary in the Pacific Northwest. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDeutsch, Herman J. Surveying the 49th Parallel, 1858-61: United States-Canada Boundary in the Pacific Northwest. Tacoma: Washington State Historical Society, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDeutsch, Herman J. Surveying the 49th Parallel, 1858-61: United States-Canada Boundary in the Pacific Northwest. Washington State Historical Society, 1962.
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