Ringwald, R., & Whittier, J. G. (1969). O brother man. For two-part voices (SA or TB) with piano or organ. Shawnee Press.
Citace podle Chicago (17th ed.)Ringwald, Roy, a John Greenleaf Whittier. O Brother Man. For Two-part Voices (SA or TB) with Piano or Organ. Delaware Water Gap, Pa: Shawnee Press, 1969.
Citace podle MLA (9th ed.)Ringwald, Roy, a John Greenleaf Whittier. O Brother Man. For Two-part Voices (SA or TB) with Piano or Organ. Shawnee Press, 1969.
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