Kohler, L. Short school of velocity without octaves for the piano, op. 242.
Čikaški stil citiranja (17. izdanje)Kohler, Louis. Short School of Velocity Without Octaves for the Piano, Op. 242.
MLA način citiranja (9. izdanje)Kohler, Louis. Short School of Velocity Without Octaves for the Piano, Op. 242.
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