Não informado. (2000). Technical report. U.S. Army Engineer Waterways Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Technical Report. Vicksburg, Miss: U.S. Army Engineer Waterways Experiment Station, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Technical Report. U.S. Army Engineer Waterways Experiment Station, 2000.
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