Walters, H. L. (1964). Trombone contrasts: For three trombones with piano accompaniment. Rubank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalters, Harold L. Trombone Contrasts: For Three Trombones with Piano Accompaniment. Chicago: Rubank, 1964.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalters, Harold L. Trombone Contrasts: For Three Trombones with Piano Accompaniment. Rubank, 1964.
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