Petersen, A. (1934). Rubank elementary method for flute or piccolo: A graded fundamental course for individual or class instruction. Rubank.
Chicago-čujuhus (17. p.)Petersen, A.C. Rubank Elementary Method for Flute or Piccolo: A Graded Fundamental Course for Individual or Class Instruction. Chicago, IL: Rubank, 1934.
MLA-čujuhus (9. p.)Petersen, A.C. Rubank Elementary Method for Flute or Piccolo: A Graded Fundamental Course for Individual or Class Instruction. Rubank, 1934.
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