Schumann, R., & Stevens, L. H. (1981). Selections from the Album for the Young, opus 68. Marimba Productions, Keyboard Percussion Publications.
Citace podle Chicago (17th ed.)Schumann, Robert, a Leigh Howard Stevens. Selections from the Album for the Young, Opus 68. Ashbury Park, N.J: Marimba Productions, Keyboard Percussion Publications, 1981.
Citace podle MLA (9th ed.)Schumann, Robert, a Leigh Howard Stevens. Selections from the Album for the Young, Opus 68. Marimba Productions, Keyboard Percussion Publications, 1981.
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