Library of Congress. Recording Laboratory, Archive of Folk Song (U.S.), & Spottswood, R. K. (1976). Folk music in America. [Library of Congress, Music Division, Recording Laboratory].
Chicago Style (17th ed.) CitationLibrary of Congress. Recording Laboratory, Archive of Folk Song (U.S.), and Richard K. Spottswood. Folk Music in America. [Washington, D.C.]: [Library of Congress, Music Division, Recording Laboratory], 1976.
MLA (9th ed.) CitationLibrary of Congress. Recording Laboratory, et al. Folk Music in America. [Library of Congress, Music Division, Recording Laboratory], 1976.
Warning: These citations may not always be 100% accurate.