United States. National Park Service, Smithsonian Institution, & Festival of American Folklife. (1991). Festival of American Folklife, June 28-July 1 and July 4-July 7. Smithsonian Institution.
Citace podle Chicago (17th ed.)United States. National Park Service, Smithsonian Institution, a Festival of American Folklife. Festival of American Folklife, June 28-July 1 and July 4-July 7. [Washington, D.C.]: Smithsonian Institution, 1991.
Citace podle MLA (9th ed.)United States. National Park Service, et al. Festival of American Folklife, June 28-July 1 and July 4-July 7. Smithsonian Institution, 1991.
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