Botsford, F. H., & Engel, C. (1930). Botsford collection of folk-songs: With English versions by American poets (Rev. ed.). Schirmer.
Citace podle Chicago (17th ed.)Botsford, Florence Hudson, a Carl Engel. Botsford Collection of Folk-songs: With English Versions by American Poets. Rev. ed. New York: Schirmer, 1930.
Citace podle MLA (8th ed.)Botsford, Florence Hudson, a Carl Engel. Botsford Collection of Folk-songs: With English Versions by American Poets. Rev. ed. Schirmer, 1930.
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