Koepke, P. (1967). Arietta and scherzo: For Eb clarinet with piano accompaniment. Rubank.
Čikaški stil citiranja (17. izdanje)Koepke, Paul. Arietta and Scherzo: For Eb Clarinet with Piano Accompaniment. Chicago: Rubank, 1967.
MLA način citiranja (9. izdanje)Koepke, Paul. Arietta and Scherzo: For Eb Clarinet with Piano Accompaniment. Rubank, 1967.
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