Abbott, C. (1981). The great extravaganza: Portland and the Lewis and Clark Exposition. Oregon Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbbott, Carl. The Great Extravaganza: Portland and the Lewis and Clark Exposition. Portland, Or.: Oregon Historical Society, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAbbott, Carl. The Great Extravaganza: Portland and the Lewis and Clark Exposition. Oregon Historical Society, 1981.
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