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.
Цитирование в стиле Чикаго (17-е изд.)National Museum of Natural History (U.S.), William W. Fitzhugh, и Elisabeth I. Ward. Vikings: The North Atlantic Saga. Washington [D.C.]: Smithsonian Institution Press in association with the National Museum of Natural History, 2000.
Цитирование MLA (8-е изд.)National 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.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.