Bessey, R. F. (1963). Pacific Northwest regional planning: A review. Dept. of Conservation, Division of Power Resources.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBessey, Roy F. Pacific Northwest Regional Planning: A Review. Olympia, Wash.: Dept. of Conservation, Division of Power Resources, 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBessey, Roy F. Pacific Northwest Regional Planning: A Review. Dept. of Conservation, Division of Power Resources, 1963.
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