National Museum of Natural History (U.S.), Fitzhugh, W. W., & Ward, E. I. (2000). Vikings: The North Atlantic saga. Smithsonian Institution Press in association with the National Museum of Natural History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Museum of Natural History (U.S.), William W. Fitzhugh, और Elisabeth I. Ward. Vikings: The North Atlantic Saga. Washington [D.C.]: Smithsonian Institution Press in association with the National Museum of Natural History, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNational Museum of Natural History (U.S.), et al. Vikings: The North Atlantic Saga. Smithsonian Institution Press in association with the National Museum of Natural History, 2000.
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