RUSCH, H. W. (1960). 18 (Eighteen) Barret and Iancourt studies for individual or class instruction In unison - in ensemble or full band performance. Belwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRUSCH, Harold W. 18 (Eighteen) Barret and Iancourt Studies for Individual or Class Instruction In Unison - in Ensemble or Full Band Performance. Belwin, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRUSCH, Harold W. 18 (Eighteen) Barret and Iancourt Studies for Individual or Class Instruction In Unison - in Ensemble or Full Band Performance. Belwin, 1960.
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