Smithsonian Institution. Bureau of American Ethnology & Roberts, F. H. H. (1961). River Basin Surveys papers. Smithsonian Institution, Bureau of American Ethnology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmithsonian Institution. Bureau of American Ethnology और Frank H. H. Roberts. River Basin Surveys Papers. Washington: Smithsonian Institution, Bureau of American Ethnology, 1961.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSmithsonian Institution. Bureau of American Ethnology और Frank H. H. Roberts. River Basin Surveys Papers. Smithsonian Institution, Bureau of American Ethnology, 1961.
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