Lancaster, S. C. (1926). The Columbia, America's great highway through the Cascade mountains to the sea (3d ed.). The J. K. Gill company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLancaster, Samuel Christopher. The Columbia, America's Great Highway Through the Cascade Mountains to the Sea. 3d ed. Portland, Or.: The J. K. Gill company, 1926.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLancaster, Samuel Christopher. The Columbia, America's Great Highway Through the Cascade Mountains to the Sea. 3d ed. The J. K. Gill company, 1926.
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