United States. Army. Corps of Engineers. (1975). Water resources development. North Pacific Division, Corps of Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Engineers. Water Resources Development. Portland, Or.: North Pacific Division, Corps of Engineers, 1975.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Engineers. Water Resources Development. North Pacific Division, Corps of Engineers, 1975.
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