Lockley, F. (1928). History of the Columbia river valley from The Dalles to the sea. S. J. Clarke Pub. Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLockley, Fred. History of the Columbia River Valley from The Dalles to the Sea. Chicago: S. J. Clarke Pub. Co., 1928.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLockley, Fred. History of the Columbia River Valley from The Dalles to the Sea. S. J. Clarke Pub. Co., 1928.
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