La Fay, H., Spiegel, T., & Glanzman, L. S. (1972). The Vikings. National Geographic Society.
Chicago Style (17th ed.) CitationLa Fay, Howard, Ted Spiegel, and Louis S. Glanzman. The Vikings. Washington: National Geographic Society, 1972.
MLA (9th ed.) CitationLa Fay, Howard, et al. The Vikings. National Geographic Society, 1972.
Warning: These citations may not always be 100% accurate.
