Mumford, L. (1939). Regional planning in the Pacific Northwest: A memorandum. Northwest regional council.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMumford, Lewis. Regional Planning in the Pacific Northwest: A Memorandum. Portland, Or.: Northwest regional council, 1939.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMumford, Lewis. Regional Planning in the Pacific Northwest: A Memorandum. Northwest regional council, 1939.
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