Ostransky, L. (1967). Praeludium: For Eb clarinet with piano accompaniment. Rubank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOstransky, Leroy. Praeludium: For Eb Clarinet with Piano Accompaniment. Chicago: Rubank, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOstransky, Leroy. Praeludium: For Eb Clarinet with Piano Accompaniment. Rubank, 1967.
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