Pischna, J. (1967). Technical studies sixty progressive exercises, containing studies on trills, scales, chords, passages and arpeggios for the piano. G. Schirmer.
Citace podle Chicago (17th ed.)Pischna, Johann. Technical Studies Sixty Progressive Exercises, Containing Studies on Trills, Scales, Chords, Passages and Arpeggios for the Piano. Milwaukee: G. Schirmer, 1967.
Citace podle MLA (9th ed.)Pischna, Johann. Technical Studies Sixty Progressive Exercises, Containing Studies on Trills, Scales, Chords, Passages and Arpeggios for the Piano. G. Schirmer, 1967.
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