Hawthorne, A., & Grooms, C. (1925). Whispering hope: Vocal solo for medium voice or duet ad lib. for mezzo-soprano and alto. Century Music.
Citace podle Chicago (17th ed.)Hawthorne, Alice, a Calvin Grooms. Whispering Hope: Vocal Solo for Medium Voice or Duet Ad Lib. for Mezzo-soprano and Alto. New York: Century Music, 1925.
Citace podle MLA (9th ed.)Hawthorne, Alice, a Calvin Grooms. Whispering Hope: Vocal Solo for Medium Voice or Duet Ad Lib. for Mezzo-soprano and Alto. Century Music, 1925.
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